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【简答题】
用最简或非电路实现题中的各函数。
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举一反三
【单选题】蛋白质的平均含氮量是
A.
10%
B.
16%
C.
20%
D.
26%
【简答题】听下面一段小对话,回答1-3小题 1. Where is Tom’s computer ? A. In the drawer. B. In his backpack. C. On the sofa. 2. How many people are mentioned位(提到) in the dialogue (对话)? A. One B. Two C. Three. 3. Which of ...
【单选题】蛋白质的平均含氮量
A.
25%
B.
16%
C.
45%
D.
50%
【单选题】蛋白质的平均含氮量是
A.
6.25%
B.
16%
C.
20%
D.
40%
E.
60%
【单选题】糖酵解途径中,催化产生 NADH+H+的酶是(2019真题上91)
A.
甘油醛-3-磷酸脱氢酶
B.
葡萄糖-6-磷酸脱氢酶
C.
丙酮酸脱氢酶复合物
D.
6-磷酸葡萄糖酸脱氢酶
E.
苹果酸脱氢酶
【单选题】His backpack the chair. [     ]
A.
can't in
B.
isn't on
C.
is for
D.
aren't on
【单选题】—_____is his backpack? —It is in the room. [     ]
A.
How
B.
Where
C.
What
【单选题】His backpack is the same _____ Tom's.
A.
at
B.
as
C.
from
D.
in
【简答题】听长对话,选择正确答案。 1. Where is Tom's computer ? A. In the drawer. B. In his backpack. C. On the sofa. 2. How many people are mentioned (提到) in the dialogue? A. One. B. Two. C. Three. 3. Which of the fol...
【多选题】在管道安装中下列叙述正确的是()。
A.
管道安装要横平呸直,对口准确
B.
安装时,如发现管道对口偏差过大,应查明原因再进行处理
C.
管道穿过平台或墙壁时,其穿孔的最小直径应大于管道保温后的直径
D.
管道安装完毕后,除受支吊架的正常约束作用外,其他任何装置都不应对管道的热位移产生阻碍
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