题目内容

当活塞式单出杆缸应用于工程上常用的工况时，有以下哪几种情况出现

A. 差动连接
B. 无杆腔进油
C. 有杆腔进油

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液压缸的结构分为哪几部分

A. 缸体组件
B. 活塞组件
C. 密封装置
D. 缓冲装置和排气装置

用指针式万用表测量二极管的极性，将红、黑表笔分别接二极管的两个电极，若测得的电阻很小（几千欧以下），则黑表笔所接电极为二极管的。

A. 阳极
B. 阴极
C. 无法确定

用以下单词的正确形式填空。utter phenomenon authentic acquiescence soothprecious mission assume loyalty community1. Her parents will never take______ of such a marriage.2. Her _ in life was to work with the homeless.3. I don't know if the painting is.4.Clean water is a commodity in that part of the world.5. Your tenderness kisses my soul.6.His sense of blinded him to the truth.7.This is a natural _ that happens about once a century.8. he's still alive, how old would he be now?9.The school has established a successful relationship with the local.10. He kept moving his lips but could no longer _______ a word.

明大德,就是要锤炼( )。

A. 高尚品格
B. 明辨是非
C. 崇德修身
D. 启润青春