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【简答题】
三相异步电动机的转动方向与（）有关。
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】She said that she would see the doctor, ?
A.
did she
B.
didn't she
C.
would she
D.
wouldn't she
【单选题】She said that she ______ much progress since she came here.
A.
makes
B.
have made
C.
had made
D.
made
【简答题】当线程处于新建状态后,调用了start()方法,该线程就处于_________状态。
【判断题】到了19世纪40年代前后,欧洲科学界已经普遍蕴含着一种思想气氛,以一种联系的观点去观察自然现象。正是在这种情况下,以西欧为中心,从事七八种专业的十多位科学家,分别通过不同途径,各自独立的发现了能量守恒原理。贡献最为突出的有三位科学家,他们是:德国的医生迈尔,英国的实验物理学家焦耳,德国的生物学家、物理学家亥姆霍兹。
A.
正确
B.
错误
【简答题】建设工程招标、投标要坚持那些原则？
【单选题】She said that she __ much progress since she came here
A.
has made
B.
had made
C.
makes
D.
made
【单选题】下列解决生活中实际问题的方法与相应科学原理不对应的是 选项 方法 科学原理
A.
用酒精洗涤油污 油污能溶解在酒精中
B.
醋除去热水瓶中的水垢 水垢与醋酸反应
C.
森林着火开辟隔离带 温度降低到着火点以下能灭火
D.
铝制容器不能盛酸性物质 酸性物质会破坏铝的氧化膜，进而腐蚀金属铝
相关题目：
【单选题】She said that she would see the doctor, ?
A.
did she
B.
didn't she
C.
would she
D.
wouldn't she