皮皮学，免费搜题
登录
搜题
【判断题】
齿轮副的最小侧隙是由齿厚的上偏差保证的。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】以下关于循环系统的神经调节不正确的是
A.
交感神经兴奋使心率加快
B.
交感神经兴奋使心肌收缩力增强
C.
交感神经兴奋α、北β受体调节血液循环
D.
副交感神经兴奋使血压升高
E.
交感神经兴奋时通过肾上腺素能受体产生与副交感神经相反的作用
【单选题】听力原文： In England everything in the other way is round. On the Continent learned persons love to quote Aristotle, Horace, Montaigne and show off their knowledge in England only uneducated people show o...
A.
No, because he has never read them.
B.
No, except in the case that he has never read them.
C.
No, except in the case that he really likes them.
D.
No, because he does not like them.
【简答题】Does Jim come from Australia? Does he come from England? Is the weather always pleasant in England? What's the weather like in the North? What's the weather like in the East? What's it like in the Wes...
【单选题】New England is in the ______ of the United States.
A.
northwest
B.
southeast
C.
southwest
D.
northeast
【简答题】罪犯就餐时应做到哪些要求 ？
【单选题】以下关于循环系统的神经调节不正确的是
A.
交感神经兴奋使心率加快
B.
交感神经兴奋使心肌收缩力增强
C.
交感神经兴奋a、β受体调节血液循环
D.
副交感神经兴奋使血压升高
E.
交感神经兴奋时通过肾上腺素能受体产生与副交感神经相反的作用
【单选题】a. The speaker is quite sure that London is not in the north of England . b. The speaker is not sure whether London is in the north of England.
A.
The speaker is quite sure that London is not in the north of England .
B.
The speaker is not sure whether London is in the north of England.
【多选题】下面关于显微镜的操作注意事项正确的是哪几项?
A.
镜头不能用手指或硬物摩擦，只能用擦镜纸擦拭
B.
旋转部件不要太用力，但要旋转到位，尤其物镜
C.
不要随意拆卸部件
D.
放到载物台上的玻片底部不能有水分或其他液体，防止腐蚀载物台。
相关题目：