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搜题
【单选题】
_ _ _ _ _ 不利于提高轮齿抗疲劳折断能力。
A.
减小齿面粗糙度值
B.
减轻加工损伤
C.
表面强化处理
D.
减小齿根过渡曲线半径
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举一反三
【单选题】抗原抗体反应需要合适的温度才有利于二者结合,其范围一般为
A.
4~10℃
B.
11~15℃
C.
16~20℃
D.
15~40℃
E.
41~50℃
【单选题】Which of the following is true of Nicholas Humphrey?
A.
He thinks Ayumu has an amazing memory.
B.
He believes that Ayumu sees the colors of numbers.
C.
He was inspired by Primatologist Tetsuro Matsuzawa.
D.
He delivered a speech on synesthesia at the 2011 conference.
【简答题】Which of the following is NOT mentioned as an important factor in improving memory? [A] Physical exercise. [B] Food supply. [C] Water supply. [D] Enough sleep.
【简答题】抗体一般是
【单选题】用琼脂双扩散法对荧光抗体效价进行滴定,效价一般应大于
A.
1:4
B.
1:8
C.
1:16
D.
1:32
E.
1:64
【单选题】上题各图中的旅游资源属于中国世界文化遗产的是:
A.
B.
C.
D.
【单选题】What does the passage mainly tell us?
A.
Learning a foreign language depends on a good memory.
B.
None of us can live without memory.
C.
Our memories are truly amazing.
D.
How well we remember things is affected by various factors.
【单选题】抗原抗体反应需要合适的温度才有利于二者结合,其范围一般为
A.
4~101℃,
B.
11~15℃
C.
16~20℃
D.
21~40℃
E.
41~50℃
【简答题】“When Lilacs Last in the Dooryard Bloomed” was a poem written by Walt Whitman in memory of __________.
【判断题】真实单层等同于BET单层。
A.
正确
B.
错误
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