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【单选题】
右图是家鸽的呼吸系统示意图,下列说法正确的是A.
结构①和 ②主要功能是辅助呼吸
B.
结构 ② 和 ③ 进行气体交换
C.
结构③是家鸽气体交换的器官
D.
吸入的气体依次通过 ① → ② → ③
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举一反三
【单选题】Word length is one of the main performance indicators of CPU, it means .
A.
the number of binary digits that can CPU process at a time?
B.
the longest decimal integer digit in CPU.
C.
the largest number of effective digit of CPU. CPU 最大 的有效数字位数
D.
effective digit length of CPU's calculation result. CPU 计算结果的有效数字长度
【单选题】关于大气中的空气离子,下列说法正确的是?
A.
新鲜的清洁空气中轻离子浓度低。
B.
污染的空气中轻离子浓度低。
C.
空气阳离子对机体有镇静、催眠和降压作用。
D.
空气阴离子可引起失眠、烦躁和血压升高。
【单选题】关于大气中的空气离子,下列说法正确的是
A.
新鲜清洁的空气中轻离子浓度高
B.
污染的空气中轻离子浓度低
C.
空气阳离子对机体有镇静.催眠和降压作用
D.
空气阴离子可引起失眠.烦躁和血压升高
E.
海滨.森林.瀑布附近环境中，大气中阳离子含量较多
【单选题】Which one describes the arm's length standard?
A.
It means that intra-firm trade of multinationals should not be priced as if they took place between unrelated parties acting at arm's length in competitive markets
B.
The arm’s length standard is as the same as the transfer price
C.
The arm's length standard states that intra-firm trade of multinationals should be priced as if they took place between unrelated parties acting at arm's length in competitive markets
D.
All MNC intra-firm activities should be priced as if they took place between unrelated parties acting at arm's length in competitive markets
【单选题】The word “navigate” in Paragraph 3 means
A.
help one control the traffic
B.
help one find one’s way
C.
give a ship correct information about its course
D.
direct a plane to its destination
【单选题】Care should be taken to decrease the length of time that one is ______ loud continuous noise.
A.
subjected to
B.
filled with
C.
associated with
D.
attached to
【单选题】What does the word length refer to ().
A.
Length between the perpendiculars
B.
Length overall
C.
Waterline length
D.
Register length
【判断题】Parallel structure only involves one word,pharase or clauses that is similar in length and grammatical form.
A.
正确
B.
错误
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