皮皮学，免费搜题
登录
搜题
【单选题】
由锡青铜制造的蜗轮齿圈，其齿面接触应力[σ H ]与之无关的是( )。A.
滑动速度
B.
蜗杆齿面硬度
C.
蜗轮铸造方法
D.
工作是否长期连续
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
【简答题】抄写下列的单词。 1. famous __________________ 2. thousand __________________ 3. about __________________ 4. hundred __________________
【多选题】以下哪些性质与环磷酰胺相符
A.
结构中含有双β-氯乙基氨基
B.
可溶于水，水溶液较稳定，受热不分解
C.
水溶液不稳定，遇热更易水解
D.
体外无活性，进入体内经肝脏代谢活化
E.
易通过血脑屏障进入脑脊液中
【简答题】听对话，回答问题。 1. What is the speaker talking about? A. A famous writer B. A famous reporter C. A famous teacher 2. How long did Thomas Keefe stay in the army? A. One year B. Two years C. Three years 3. Wh...
【简答题】句型转换。 1. That famous singer has written many hit songs already. (改为一般疑问句) _____ that famous singer _____ many hit songs _____ ? 2. Jackie Lee has given tremendous sums of money he made to a charity fo...
【简答题】用适当的介词填空。 1. Wei Fang is famous ______ the kites. 2. Zhang Ziyi is famous ______ an actress. 3. - Betty looks ______ that girl. Are they twins? - Yes, they are. 4. Did you have a wonderful time ______...
【简答题】桥面排水可综合采用设置纵坡、桥面横坡及设置一定数量 措施及时排水。
【简答题】听下面一段材料，回答问题。 1. Who will give them a talk? [ ] A. A famous art teacher. B. A famous writer. C. A famous doctor. 2. When will the talk start? [ ] A. On Saturday night. B. On Sunday afternoon. ...
相关题目：