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【简答题】
空胶囊共有 种规格, 随着型号逐渐增大,容积 ,容积最大的是 号胶囊。
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【单选题】美国国家航空航天局(NASA)的美国天文学家正式宣布,他们发现了太阳系外的两颗小行星,与人类已知的其他行星相比,这两颗新行星与地球有更多共同点,如它们都是球形的,都围绕某个恒星运转,它们的表面由岩石或者冰层构成。既然地球上有生物存在,因此,这两颗行星也可能有生物存在。 以下哪项为真,最能削弱上述结论的可靠性?()
A.
地球和这两颗行星的大小不同
B.
这两颗行星上没有能生成有机物的物质存在
C.
地球和这两颗行星生成的时间不同
D.
这两颗行星距地球很远,不可能有生物存在
【多选题】溅渣护炉需要()使炉渣粘度增高。
A.
适当高温
B.
适当低温
C.
MgO多
D.
MgO少
【单选题】听力原文:M: Oh, hello, Li Ping. Come on in, and how've you been keeping recently? W: Quite all right, thanks, Dr. Francis. How's your project going? M: Very smoothly, 1 should say. I'm playing a consultan...
A.
A teacher of English in Cambridge.
B.
A specialist in computer science.
C.
A consultant to a Scottish company.
D.
A British tourist to China.
【单选题】听力原文:M: Oh, hello, Li Ping. Come on in, and how've you been keeping recently? W: Quite all right, thanks, Dr. Frances. How's your project going? M: Very smoothly, I should say. I'm playing a consultan...
A.
She is a teacher of English in Cambridge.
B.
She is a specialist in computer science.
C.
She is a consultant to a Scottish company.
D.
She is a British tourist to China.
【单选题】听力原文:M: Oh, hello, Li Ping. Come on in, and how've you been keeping recently? W: Quite all right, thanks, Dr. Francis. How's your project going? M: Very smoothly, I should say. I'm playing a consultan...
A.
A teacher of English in Cambridge.
B.
A specialist in computer science.
C.
A consultant to a Scottish company.
D.
A British tourist to China.
【判断题】竣工验收应在工程建设项目完成的两年内并经一个灌溉期的运行考验后进行
A.
正确
B.
错误
【简答题】NASA是哪个国家航空航天局的简称?
【判断题】NASA是美国国家航空航天局出版的科技报告。
A.
正确
B.
错误
【单选题】NASA是()国家航空航天局。
A.
中国
B.
英国
C.
美国
D.
德国
【单选题】I _______ all the cooking for my family, but recently I’ve been too busy to do it.
A.
will do
B.
do
C.
am doing
D.
had done
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