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【单选题】
Important modern applications of control systems include which of the following?
A.
Safe automobiles
B.
Autonomous robots
C.
Automated manufacturing
D.
All of the above
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举一反三
【单选题】P2 What does the speaker
A.
B.
C.
D.
D
【单选题】2) The speaker does not mention
A.
taking a taxi.
B.
taking an airport shuttle bus.
C.
taking a trolley bus.
D.
taking an airport subway.
【单选题】在 vi 里,命令“y^”用来复制当前光标到( )的内容
A.
行末
B.
字符末
C.
字符开头
D.
行首
【单选题】下面月球表面放置的 SLR 激光反射器不能工作的是
A.
Apollo 14
B.
Apollo 15
C.
Lunakhod 1
D.
Lunakhod 2
【单选题】临床上作早期妊娠诊断时,通常检测孕妇尿中的
A.
雌激素、 孕激素
B.
绒毛膜促性腺激素
C.
胎盘催乳激素
D.
黄体生成素
【简答题】听下面一段材料,回答第1-4题 1.What is the first thing the speaker does after getting up? A. Make her lunch B. Have breakfast C. Take a shower 2. When does the speaker wake up her son? A. Around 6:15 B. Around 7: ...
【单选题】早期妊娠诊断可检测孕妇尿中的
A.
雌激素
B.
孕激素
C.
人绒毛膜促性腺激素
D.
人胎盘催乳素
E.
雌激素和孕激素
【简答题】请听材料,回答第1至3题。 1. What is the first thing the speaker does after getting up? A. To make her lunch. B. To have breakfast. C. To take a shower. 2. Which of the following is true according to the talk? A....
【单选题】王向德研究了乳状液膜提取稀土。经一级逆流乳状液膜提取,在流量比(水:乳)为2~2.7时,稀土提取率92~94%,富集倍数32~46。膜内相蒸发可得98%混合氯化稀土,纯度高于溶剂萃取,成本仅为萃取法的( )。
A.
1/10
B.
1/20
C.
1/8
D.
1/3
【单选题】在 vi 里,命令“y$”用来复制当前光标到( )的内容
A.
行末
B.
字符末
C.
字符开头
D.
行首
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