皮皮学，免费搜题
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搜题
【单选题】
船舶在沿岸和拥挤水域航行时:I、 应使用合适与该地区并依照最新航海通告的最大比例尺海图 II、 在确认没有碰撞危险的情况下. 测船位;如船上装有GPS,则应信赖GPS船位,因为GPS船位精度高于其他方法 III、 值班驾驶员应确切地辨认沿岸及所有有关的航行标志
A.
Ⅰ
B.
Ⅰ 、 Ⅱ
C.
Ⅰ 、 Ⅱ 、 Ⅲ
D.
Ⅰ、 Ⅲ
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【多选题】以下哪些选项是跨境电子商务存在的问题? ( )
A.
跨境电子商务比例严重失衡
B.
产品同质化严重，出口盈利能力有待进一步提升
C.
通关成为跨境电子商务交易最大壁垒
D.
跨境电子商务人才缺失
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【单选题】Question 6 is based on the news report you have just heard.
A.
. A) It intends to keep its traditional diet.
B.
B) It wants to expand its own farming.
C.
C) It is afraid of the spread of disease.
D.
D) It is worried about unfair competition.
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【判断题】在一棵度为 4 的树中,若有 20 个度为 4 的结点, 10 个度为 3 的结点, 1 个度为 2 的结点, 10 个度为 1 的结点,则树 T 的叶结点个数是 81 。
A.
正确
B.
错误
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【单选题】在一棵度为4的树T中,若20个度为4的结点,10个度为3的结点,1个度为2的结点,10个度为1的结点,则树T中的叶结点个数是( )。
A.
41
B.
82
C.
113
D.
122
查看完整题目与答案
【单选题】Question6 is based on the news report you have just heard.
A.
Engineering problems.
B.
The air pollution it produced.
C.
Inadequate funding.
D.
The opposition from the military.
查看完整题目与答案
【单选题】NH 4 CN 水溶液的质子条件平衡式为
A.
[H+] = [NH3]+ [OH-]
B.
[H+] + 2[HCN] = [OH-]
C.
[H+] + [HCN] = [NH3]
D.
[H+] + [HCN] = [NH3] + [OH-]
查看完整题目与答案
【单选题】在一棵度为 3 的树中,若度为 3 的结点有 2 个,度为 2 的结点有 1 个,度为 1 的结点有 2 个,则叶子结点数为 ( ) 。
A.
5
B.
6
C.
7
D.
8
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【单选题】Question 6 is based on the news report you have just heard.
A.
The boy's father.
B.
Soldiers, police and volunteers.
C.
Japan's military.
D.
Child psychiatrists.
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【单选题】Question 6 is based on the news report you have just heard.
A.
Deliver scientific equipment to the moon.
B.
Approve a new mission to travel into outer space.
C.
Work with federal agencies on space programs.
D.
Launch a manned spacecraft to Mars.
查看完整题目与答案
【单选题】Question 9 is based on the same passage of question 6.What is implied in the passage?
A.
People started to associate colors with emotions long time ago.
B.
How colors show emotions is a new research topic.
C.
People wearing different colors usually feel happy.
D.
The colors people choose affect their physical health.
查看完整题目与答案
相关题目：
【多选题】以下哪些选项是跨境电子商务存在的问题? ( )
A.
跨境电子商务比例严重失衡
B.
产品同质化严重，出口盈利能力有待进一步提升
C.
通关成为跨境电子商务交易最大壁垒
D.
跨境电子商务人才缺失
查看完整题目与答案
【单选题】Question 6 is based on the news report you have just heard.
A.
. A) It intends to keep its traditional diet.
B.
B) It wants to expand its own farming.
C.
C) It is afraid of the spread of disease.
D.
D) It is worried about unfair competition.
查看完整题目与答案
【判断题】在一棵度为 4 的树中,若有 20 个度为 4 的结点, 10 个度为 3 的结点, 1 个度为 2 的结点, 10 个度为 1 的结点,则树 T 的叶结点个数是 81 。
A.
正确
B.
错误
查看完整题目与答案
【单选题】在一棵度为4的树T中,若20个度为4的结点,10个度为3的结点,1个度为2的结点,10个度为1的结点,则树T中的叶结点个数是( )。
A.
41
B.
82
C.
113
D.
122
查看完整题目与答案
【单选题】Question6 is based on the news report you have just heard.
A.
Engineering problems.
B.
The air pollution it produced.
C.
Inadequate funding.
D.
The opposition from the military.
查看完整题目与答案
【单选题】NH 4 CN 水溶液的质子条件平衡式为
A.
[H+] = [NH3]+ [OH-]
B.
[H+] + 2[HCN] = [OH-]
C.
[H+] + [HCN] = [NH3]
D.
[H+] + [HCN] = [NH3] + [OH-]
查看完整题目与答案
【单选题】在一棵度为 3 的树中,若度为 3 的结点有 2 个,度为 2 的结点有 1 个,度为 1 的结点有 2 个,则叶子结点数为 ( ) 。
A.
5
B.
6
C.
7
D.
8
查看完整题目与答案
【单选题】Question 6 is based on the news report you have just heard.
A.
The boy's father.
B.
Soldiers, police and volunteers.
C.
Japan's military.
D.
Child psychiatrists.
查看完整题目与答案
【单选题】Question 6 is based on the news report you have just heard.
A.
Deliver scientific equipment to the moon.
B.
Approve a new mission to travel into outer space.
C.
Work with federal agencies on space programs.
D.
Launch a manned spacecraft to Mars.
查看完整题目与答案
【单选题】Question 9 is based on the same passage of question 6.What is implied in the passage?
A.
People started to associate colors with emotions long time ago.
B.
How colors show emotions is a new research topic.
C.
People wearing different colors usually feel happy.
D.
The colors people choose affect their physical health.
查看完整题目与答案