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【单选题】
...but I am not aware of any success stories that began with somebody dropping out of high school. In the sentence, “am not aware of” means:A.
have seen
B.
haven’t known
C.
hasn’t met
D.
haven’t been met
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反馈参考答案：
举一反三
【判断题】Because of cultural differences, Waverly has broken up with her American boyfriend Rich.
A.
正确
B.
错误
【单选题】任何单位和( )都有维护消防安全、保护消防设施、预防火灾、报告火警的义务。任何单位和( )都有参加有组织的灭火工作的义务。
A.
个人 成年人
B.
个人 个人
C.
成年人 成年人
D.
成年人 个人
【单选题】Because of cultural differences , sales of this brand of canned beer dropped in a certain part of Central Africa, ___ a change in the size of the can containing the beer.
A.
Coinciding to
B.
Coinciding with
C.
to coincide
D.
coinciding
【单选题】Because of cultural difference, foreigners found it hard to interpret the facial expressions of local people.
A.
to translate orally from one language to another
B.
to explain what is not easy to understand
C.
to understand the intended meaning of
D.
null
【单选题】免疫学中的“非已物质”不包括
A.
异种物质
B.
同种异体物质
C.
结构发生改变的自身物质
D.
胚胎期机体免疫细胞未接触过的自身物质
E.
胚胎期机体免疫细胞接触过的自身物质
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