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【单选题】
已知A、B为单质，C为化合物。 ①若C溶于得到强碱溶液，则A可能是Na ②若C溶液遇Na 2 CO 3 ，放出CO 2 气体，则A可能是H 2 ③若C溶液中滴加过量NaOH溶液，先出现浑浊后澄清，则B可能为Al ④若C溶液中滴加NaOH溶液有蓝色沉淀生成，则B可能为Cu 能实现上述转化关系的是
A.
①②   
B.
②④   
C.
①③   
D.
③④
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【单选题】The maritime labour certificate shall be issued to _____ by the competent authority, or by a recognized
A.
ganization duly authorized for this purpose.
B.
a ship
C.
a country
D.
an authority
E.
a person
查看完整题目与答案
【单选题】According to Maritime Labour Convention, 2006, the minimum hours of rest shall not be less than ____________.
A.
12 hours in any 24-hour period
B.
. 72 hours in any 7-day period
C.
10 hours in any 24-hour period
D.
88 hours in any 7-day period
查看完整题目与答案
【单选题】仓储区通常应有单独的物料取样区。取样区的空气洁净度级别与生产要求相比应当( A )。如在其他区域或采用其他方式取样,应能防止污染或交叉污染。
A.
一致
B.
高于生产要求一个级别
C.
低于生产要求一个级别
D.
无规定
查看完整题目与答案
【单选题】The company isnt______doing such big business.
A.
able to
B.
capable to
C.
able of
D.
capable of
查看完整题目与答案
【判断题】芭蕾舞起源于西班牙,成长在法兰西,兴盛于俄罗斯。
A.
正确
B.
错误
查看完整题目与答案
【单选题】同一信息对有的人有用,对有的人无用,这说明( )
A.
信息具有时效性
B.
信息来源的杖威性
C.
信息来源的多样性
D.
信息价值取向的多样性
查看完整题目与答案
【单选题】某年轻男性，活动时突感右胸部撕裂样痛，半小时后入院。查体：瘦长体型，大汗淋漓惊恐状，气促，气管左偏，右颈部皮下气肿，叩诊右胸空瓮音，右侧呼吸音消失。该患者最可能诊断为
A.
胸腔积液
B.
大叶性肺炎
C.
干性胸膜炎
D.
右侧张力性气胸
E.
肺气肿
查看完整题目与答案
【单选题】According to Maritime Labour Convention, 2006, the minimum hours of rest shall not be less than ____________.
A.
10 hours in any 24-hour period
B.
72 hours in any 7-day period
C.
14 hours in any 24-hour period
D.
none of the other alternatives
查看完整题目与答案
【单选题】A Class1 MES is capable of ____.
A.
ship-to-shore and shore-to-ship message transfer and distress alerting, but is not capable of receiving EGC messages
B.
ship-to-shore and shore-to-ship message transfer and distress alerting, and be capable of receiving EGC messages
C.
ship-to-shore and shore-to-ship message transfer and receiving EGC messages, but is not capable of distress alerting
D.
distress alerting and receiving EGC messages, but is not capable of ship-to-shore and shore-to-ship message transfer
查看完整题目与答案
【单选题】( ) 282. Si je continuais à créer, je ____ bien capable de rater mon affaire.
A.
suis
B.
étais
C.
serai
D.
serais
查看完整题目与答案
相关题目：
【单选题】The maritime labour certificate shall be issued to _____ by the competent authority, or by a recognized
A.
ganization duly authorized for this purpose.
B.
a ship
C.
a country
D.
an authority
E.
a person
查看完整题目与答案
【单选题】According to Maritime Labour Convention, 2006, the minimum hours of rest shall not be less than ____________.
A.
12 hours in any 24-hour period
B.
. 72 hours in any 7-day period
C.
10 hours in any 24-hour period
D.
88 hours in any 7-day period
查看完整题目与答案
【单选题】仓储区通常应有单独的物料取样区。取样区的空气洁净度级别与生产要求相比应当( A )。如在其他区域或采用其他方式取样,应能防止污染或交叉污染。
A.
一致
B.
高于生产要求一个级别
C.
低于生产要求一个级别
D.
无规定
查看完整题目与答案
【单选题】The company isnt______doing such big business.
A.
able to
B.
capable to
C.
able of
D.
capable of
查看完整题目与答案
【判断题】芭蕾舞起源于西班牙,成长在法兰西,兴盛于俄罗斯。
A.
正确
B.
错误
查看完整题目与答案
【单选题】同一信息对有的人有用,对有的人无用,这说明( )
A.
信息具有时效性
B.
信息来源的杖威性
C.
信息来源的多样性
D.
信息价值取向的多样性
查看完整题目与答案
【单选题】某年轻男性，活动时突感右胸部撕裂样痛，半小时后入院。查体：瘦长体型，大汗淋漓惊恐状，气促，气管左偏，右颈部皮下气肿，叩诊右胸空瓮音，右侧呼吸音消失。该患者最可能诊断为
A.
胸腔积液
B.
大叶性肺炎
C.
干性胸膜炎
D.
右侧张力性气胸
E.
肺气肿
查看完整题目与答案
【单选题】According to Maritime Labour Convention, 2006, the minimum hours of rest shall not be less than ____________.
A.
10 hours in any 24-hour period
B.
72 hours in any 7-day period
C.
14 hours in any 24-hour period
D.
none of the other alternatives
查看完整题目与答案
【单选题】A Class1 MES is capable of ____.
A.
ship-to-shore and shore-to-ship message transfer and distress alerting, but is not capable of receiving EGC messages
B.
ship-to-shore and shore-to-ship message transfer and distress alerting, and be capable of receiving EGC messages
C.
ship-to-shore and shore-to-ship message transfer and receiving EGC messages, but is not capable of distress alerting
D.
distress alerting and receiving EGC messages, but is not capable of ship-to-shore and shore-to-ship message transfer
查看完整题目与答案
【单选题】( ) 282. Si je continuais à créer, je ____ bien capable de rater mon affaire.
A.
suis
B.
étais
C.
serai
D.
serais
查看完整题目与答案