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【单选题】
下列化学用语正确的是A.
聚丙烯的结构：
B.
丙烷分子的比例模型：
C.
四氯化碳分子的电子式：
D.
甲烷结构CH 4
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皮皮学刷刷变学霸
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【简答题】阅读理解。 Gadgets (小装置) can be wildly expensive and quickly out-of-date, but Steven Poole is still the first to buy them. Technological innovations (创新) are often quite stupid. The idea that you might wan...
【单选题】在背离《规则》时需满足下列哪些条件()。1存在碰撞的危险和/或航行的危险等,致使危险确实存在且紧迫;2两船已经临近到即将构成紧迫危险;3如果仍然严格遵守《规则》的具体条款会使两船的行动明显发生冲突,背离《规则》反而会使两船协调避让,也就是说只有背离《规则》才能避免即将形成的紧迫危险;4只要两船已构成碰撞危险就可以背离《规则》采取避让行动。
A.
①②③ ④
B.
①②③
C.
①③ ④
D.
①② ④
【单选题】Background:The chief officer and bosun is talking about something, at this time, the captain goes to bridge. S1:Morning, Chief.S2:Morning, captain.S1:What are you talking about?S2:We are talking a...
A.
In four days.
B.
The day after tomorrow.
C.
Three days later.
D.
Tomorrow.
【简答题】She"s so hot that cameramen let the camera linger over areas where they shouldn"t, movie producers find excuses to put her in a bikini. Her piercing eyes, strawberry-like lips and flawless skin defini...
【单选题】Background:The chief officer and bosun is talking about something, at this time, the captain goes to bridge. S1:Morning, Chief.S2:Morning, captain.S1:What are you talking about?S2:We are talking a...
A.
Weather.
B.
Their home town.
C.
Bosun's homesick and seasick.
D.
Their family and entertainment.
【单选题】When Steven suddenly remembered that he had left his mobile in the office, the train was already ________. [ ]
A.
on the go
B.
on the rise
C.
on the run
D.
on the move
【单选题】在背离《规则》时需满足下列哪些条件:1存在碰撞的危险和/或航行的危险等,致使危险确实存在且紧迫;2两船已经临近到即将构成紧迫危险;3如果仍然严格遵守《规则》的具体条款会使两船的行动明显发生冲突,背离《规则》反而会使两船协调避让,也就是说只有背离《规则》才能避免即将形成的紧迫危险;4只要两船已构成碰撞危险就可以背离《规则》采取避让行动。
A.
1~4
B.
1~3
C.
1、3、4
D.
1、2、4
【单选题】在背离《规则》时需满足下列哪些条件:1存在碰撞的危险和/或航行的危险等,致使危险确实存在且紧迫;2两船已经临近到即将构成紧迫危险;3如果仍然严格遵守《规则》的具体条款会使两船的行动明显发生冲突,背离《规则》反而会使两船协调避让,也就是说只有背离《规则》才能避免即将形成的紧迫危险;4只要两船已构成碰撞危险就可以背离《规则》采取避让行动。
A.
1～4
B.
1、2、3
C.
1、3、4
D.
1、2、4
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