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【单选题】
细胞内编码20种氨基酸的密码子总数为（）
A.
16
B.
18
C.
20
D.
61
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参考解析：
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【单选题】某法国籍净吨位为2500吨的非机动驳船,停靠在我国某港口装卸货物。驳船负责人已向我国海关领取了吨税执照,在港口停留期为30天,法国已与我国签订相互给予船舶税费最惠国待遇条款。假定2000净吨~10000净吨的船舶,30天期的普通税率为4.0元/净吨,优惠税率为2.9元/净吨,其应纳的船舶吨税为( )元。
A.
10025
B.
7250
C.
3625
D.
5012.5
查看完整题目与答案
【多选题】Model test 2
A.
get
B.
know
C.
success
D.
about
E.
source
F.
gather
G.
origin
H.
speed
I.
somewhat
J.
value K existence L much M for N When O Soon after Who won the 1998 World Cup football games? What happened at the United Nations? How did the critics like the new play? ____________ (1) an event takes place, newspapers are on the streets giving the details. Wherever anything happens in the world, reporters are on the spot to ________ (2) the news. Newspapers have one basic purpose, to __________ (3) the news as quickly as possible from its source, from those who make it to those who want to _____________ (4) it. Radio, telegraph, television, and other inventions brought competition for newspapers. So did the development of magazines and other means of communication. However, this competition merely spurred the newspapers on. They quickly make use of the newer and faster means of communication to improve the ___________ (5) and thus the efficiency of their own operations. Today more newspapers are printed and read than ever before. Competition also led to newspapers branching out into many other fields. Besides keeping readers about informed of the latest news, today’s newspapers educate and influence readers about politics and other important and serious matters. Newspapers influence readers’ economic choices through advertising. Most newspapers depend on advertising for their very ___________ (6). Newspapers are sold at a price that fails to cover even a small fraction of the cost of production. The main _________ (7) of income for most newspapers is commercial advertising. The __________ (8) in selling advertising depends on a newspaper’s value to advertisers. This is measured in terms of circulation. How many people read the newspaper? Circulation depends on ___________ (9) on the work of the circulation department and on the service or entertainment offered in a newspaper’s pages. But for the most part, circulation depends on a newspaper’s value to readers as a source of information _____________ (10) the community, city, country, state, nation and world and even outer space. (30.0分)
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【多选题】Refer to the exhibit.   What are three of the basic components of a VoIP network？（）
A.
software voice applications
B.
multipoint control unit （MCU）
C.
gatekeeper
D.
call agent
E.
interactive voice response （IVR） systems
F.
softphones
查看完整题目与答案
【单选题】急性根尖周炎最有效的应急处理是
A.
局麻镇痛
B.
安抚镇痛
C.
患牙调(牙合)镇痛
D.
开髓、根管引流
E.
服用消炎止痛药
查看完整题目与答案
【单选题】凯恩斯的货币需求理论认为,预防动机和交易动机的货币需求主要取决于()。
A.
物价水平
B.
收入水平
C.
物价水平
D.
货币流通速度
查看完整题目与答案
【单选题】急性根尖周炎最有效的应急处理是
A.
服用消炎镇痛药
B.
安抚镇痛
C.
患牙调（牙合）
D.
开髓、根管引流
E.
局麻镇痛
查看完整题目与答案
【单选题】What are the basic characteristics that distinguish public speaking from other forms of communication?
A.
Public speaking is more structured and usually time limited.
B.
Public speaking also requires more formal  language.
C.
Public Speaking requires a different method for delivery both verbally and nonverbally.
D.
Public speaking usually has a certain purpose.
E.
All of the above.
F.
a and d only.
查看完整题目与答案
【多选题】What are the basic functions performed by marketing?
A.
environmental analysis
B.
marketing research
C.
consumer analysis
D.
product planning
E.
distribution planning
F.
promotion planning
查看完整题目与答案
【单选题】凯恩斯的货币需求理论认为,预防动机和交易动机的货币需求主要取决于( )。
A.
物价水平
B.
收入水平
C.
利率水平
D.
货币流通速度
查看完整题目与答案
【单选题】急性根尖周炎最有效的应急处理是
A.
局麻镇痛
B.
安抚镇痛
C.
患牙调牙合镇痛
D.
开髓、根管引流
E.
服用消炎镇痛药
查看完整题目与答案
相关题目：
【单选题】某法国籍净吨位为2500吨的非机动驳船,停靠在我国某港口装卸货物。驳船负责人已向我国海关领取了吨税执照,在港口停留期为30天,法国已与我国签订相互给予船舶税费最惠国待遇条款。假定2000净吨~10000净吨的船舶,30天期的普通税率为4.0元/净吨,优惠税率为2.9元/净吨,其应纳的船舶吨税为( )元。
A.
10025
B.
7250
C.
3625
D.
5012.5
查看完整题目与答案
【多选题】Model test 2
A.
get
B.
know
C.
success
D.
about
E.
source
F.
gather
G.
origin
H.
speed
I.
somewhat
J.
value K existence L much M for N When O Soon after Who won the 1998 World Cup football games? What happened at the United Nations? How did the critics like the new play? ____________ (1) an event takes place, newspapers are on the streets giving the details. Wherever anything happens in the world, reporters are on the spot to ________ (2) the news. Newspapers have one basic purpose, to __________ (3) the news as quickly as possible from its source, from those who make it to those who want to _____________ (4) it. Radio, telegraph, television, and other inventions brought competition for newspapers. So did the development of magazines and other means of communication. However, this competition merely spurred the newspapers on. They quickly make use of the newer and faster means of communication to improve the ___________ (5) and thus the efficiency of their own operations. Today more newspapers are printed and read than ever before. Competition also led to newspapers branching out into many other fields. Besides keeping readers about informed of the latest news, today’s newspapers educate and influence readers about politics and other important and serious matters. Newspapers influence readers’ economic choices through advertising. Most newspapers depend on advertising for their very ___________ (6). Newspapers are sold at a price that fails to cover even a small fraction of the cost of production. The main _________ (7) of income for most newspapers is commercial advertising. The __________ (8) in selling advertising depends on a newspaper’s value to advertisers. This is measured in terms of circulation. How many people read the newspaper? Circulation depends on ___________ (9) on the work of the circulation department and on the service or entertainment offered in a newspaper’s pages. But for the most part, circulation depends on a newspaper’s value to readers as a source of information _____________ (10) the community, city, country, state, nation and world and even outer space. (30.0分)
查看完整题目与答案
【多选题】Refer to the exhibit.   What are three of the basic components of a VoIP network？（）
A.
software voice applications
B.
multipoint control unit （MCU）
C.
gatekeeper
D.
call agent
E.
interactive voice response （IVR） systems
F.
softphones
查看完整题目与答案
【单选题】急性根尖周炎最有效的应急处理是
A.
局麻镇痛
B.
安抚镇痛
C.
患牙调(牙合)镇痛
D.
开髓、根管引流
E.
服用消炎止痛药
查看完整题目与答案
【单选题】凯恩斯的货币需求理论认为,预防动机和交易动机的货币需求主要取决于()。
A.
物价水平
B.
收入水平
C.
物价水平
D.
货币流通速度
查看完整题目与答案
【单选题】急性根尖周炎最有效的应急处理是
A.
服用消炎镇痛药
B.
安抚镇痛
C.
患牙调（牙合）
D.
开髓、根管引流
E.
局麻镇痛
查看完整题目与答案
【单选题】What are the basic characteristics that distinguish public speaking from other forms of communication?
A.
Public speaking is more structured and usually time limited.
B.
Public speaking also requires more formal  language.
C.
Public Speaking requires a different method for delivery both verbally and nonverbally.
D.
Public speaking usually has a certain purpose.
E.
All of the above.
F.
a and d only.
查看完整题目与答案
【多选题】What are the basic functions performed by marketing?
A.
environmental analysis
B.
marketing research
C.
consumer analysis
D.
product planning
E.
distribution planning
F.
promotion planning
查看完整题目与答案
【单选题】凯恩斯的货币需求理论认为,预防动机和交易动机的货币需求主要取决于( )。
A.
物价水平
B.
收入水平
C.
利率水平
D.
货币流通速度
查看完整题目与答案
【单选题】急性根尖周炎最有效的应急处理是
A.
局麻镇痛
B.
安抚镇痛
C.
患牙调牙合镇痛
D.
开髓、根管引流
E.
服用消炎镇痛药
查看完整题目与答案