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【单选题】
如图所示装置可用于测定空气中氧气的含量,实验前在集气瓶内加入少量水,并做上记号.下列说法中 不正确 的是 [ ]A.
该实验证明空气中氧气的体积含量约占1/5
B.
实验时红磷一定要过量
C.
实验前一定要检验装置的气密性
D.
红磷燃烧产生大量的白雾,火焰熄灭后立刻打开弹簧夹
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举一反三
【单选题】Choose the best one among the given choices to explain the pattern of the following sentence:The boy made his parents angry yesterday.
A.
Subject+verb+object+object complement
B.
subject+verb+indirect object+direct object
C.
subject+linking verb+predicative
D.
subject+verb+object
【简答题】The boy started to beam and the parents seemingly got the message I send to them.
【简答题】The boy started to beam and the parents seemingly got the message I sent to them.
【单选题】不属于急性肾小球肾炎患儿水肿特点的是（）。
A.
是最常见和最早出现的症状
B.
水肿开始多在眼睑及颜面部，下行性发展逐渐波及全身
C.
水中多呈非凹陷性
D.
水肿开始多在足部及下肢，上行性发展逐渐波及全身
【单选题】The boy's parents would consult _____ to select a white day according to the birth dates of the boy and the girl and their family.
A.
a teacher
B.
a fortune teller
C.
a friend
D.
a relative
【单选题】The policeman told the boy’s parents that the boy must _______ he had stolen or go to jail.
A.
make good of the money
B.
make good for the money
C.
make good the money
D.
make good with the money
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