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【单选题】
下列不发生Molisch反应的有()
A.
鼠糖
B.
葡萄糖
C.
D.
苷元
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【单选题】—What time do you usually get up? —_____. [     ]
A.
I usually get up in the morning.
B.
I usually get up on the morning.
C.
I usually get up at nine o'clock.
D.
I usually get up at nine forty o'clock.
【单选题】在蜗杆传动中,蜗杆的 模数和蜗轮的端面模数应相等,并为标准值。
A.
轴面
B.
法面
C.
端面
【单选题】What does it mean by saying "The toughest door to open is your own car door"?
A.
The destination salesperson must stay in the office and call on prospects.
B.
The destination salesperson must get out of the office and call on prospects
C.
The destination salesperson must get out of the office and expect prospects.
D.
None of the above
【单选题】在蜗杆传动中,蜗杆的 模数和蜗轮的端面模数应相等,并为标准值。
A.
轴面
B.
法面
C.
端面
D.
以上均不对
【单选题】The toughest thing about success is ________ you have to keep on being a success.
A.
why
B.
when
C.
what
D.
that
【简答题】阅读理解。 Ma Li: Do you get up early in the morning, Ellen? Ellen: Yeah, I get up at six in the morning.  After that I run. Then I take a shower and eat  breakfast at seven. What about you? Ma Li: Me? I g...
【单选题】The toughest thing about success is _______ you have to keep on being a success.
A.
that
B.
when
C.
what
D.
why
【简答题】Why is the race regarded as one of the toughest Marthon s in the world?(para1) 2、What did Cliff Young looked like?(para2) 3、How did the world-class athletes react?(para2) 4、Why did people laugh a...
【单选题】大多数外啮合齿轮泵吸油口比出油口(    )。
A.
B.
C.
一样
D.
不确定
【单选题】在蜗杆传动中,蜗杆的 模数和蜗轮的端面模数相等,并为标准值。
A.
轴向
B.
法向
C.
端面
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