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【单选题】
当爸爸、妈妈中只有一个人外出时，儿子可以留在家里。如果爸爸、妈妈都外出，必须找一个保姆，才可以把儿子留在家中。 从上面的陈述中，可以推出下面哪项结论?( )A.
儿子在家时，爸爸也在家
B.
儿子在家时，爸爸不在家
C.
保姆不在家，儿子不会单独在家
D.
爸爸、妈妈都不在家，则儿子也不在家
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【简答题】典型的支气管哮喘严重者可被迫采取坐位或呈端坐呼吸,干咳或咯大量白色泡沫痰,甚至出现____等。
【单选题】What is the meaning of"you buy a lemon"?
A.
you buy something broken
B.
you really buy a lemon
C.
you buy a fruit
D.
you buy something fresh
【简答题】影响国际分销渠道选择的因素有哪些?
【单选题】a. I suggest you buy the truck. b. I suggest you buy either a truck or a car. c. You'd better buy the car.
A.
I suggest you buy the truck.
B.
I suggest you buy either a truck or a car.
C.
You'd better buy the car.
【单选题】We would suggest a small quantity for trial.A. you to buy B. you buy C. your buying D. your buy
A.
you to buy
B.
you buy
C.
your buying
D.
your buy
【单选题】If you had enough money, what _____? [ ]
A.
will you buy
B.
would you buy
C.
would you have bought
D.
will you have bought
【简答题】What is the meaning of PA system in Chinese?
【单选题】北宋沈括认为“天地之变，寒暑风雨，水旱螟蝗，率皆有法”，这句话包含的哲学道理是
A.
规律可以为人所认识
B.
事物的运动、变化和发展是有规律的
C.
事物是运动的，规律是客观的
D.
规律是事物运动过程中本身所固有的联系
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