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【单选题】
平时，人要用鼻呼吸而不要用口腔呼吸，是因为（ ）A.
鼻腔可以通过鼻腔粘膜，感受气味的刺激
B.
鼻腔是气体进入肺的唯一门户
C.
鼻腔可以过滤、湿润和温暖吸入的气体
D.
鼻腔可以多吸入氧气
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知识点：
皮皮学刷刷变学霸
举一反三
【判断题】The feature of arbitrariness of language means we can change the expression when we think it does not sound logical.
A.
正确
B.
错误
【单选题】当国际收支的收入数字大于支出数字时，差额则列入( )以使国际收支人为地达到平衡。
A.
“错误和遗漏”项目的支出方
B.
“错误和遗漏”项目的收入方
C.
“官方结算项目”的支出方
D.
“官方结算项目”的收入方
【判断题】By arbitrariness Saussure means that the forms of linguistic signs bear some natural relationship to their meaning.
A.
正确
B.
错误
【简答题】Whatever he says, you can be sure the sure the says the ______ ( oppos e ).
【单选题】Critical speed in diesel engines occurs when engine torque pulsations become _____.
A.
opposed to the crankshaft rocking couple
B.
resonant with the crankshaft natural frequency
C.
critical fore and aft crankshaft vibrations
D.
horizontal whipping motions of the crankshaft
【单选题】Which of the following can be inferred from Paragraph 3?
A.
Labour is under attack for opposing development.
B.
The Conservatives may abandon 'off-plan' building.
C.
Ukip may gain from its support for rural conservation.
D.
The Liberal Democrats are losing political influence.
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