复合模打料装置要力求(),安装、维修方便。A、结构多变 B、结构简单 C、零件简单 D、打

题型:单项选择题

问题:

复合模打料装置要力求(),安装、维修方便。

A、结构多变

B、结构简单

C、零件简单

D、打料快捷

考点:中级钳工中级钳工题库
题型:单项选择题

—Did Li Ming do very           in the last math exam?

—Yes, he did better than           in his class.[ ]

A. well, anyone else

B. good, any other student

C. good, anyone else

D. well, any student

题型:单项选择题

现有某金属的硝酸盐2.160g,充分加热分解生成金属氧化物0.960g和NO2、O2的混合气体0.0270mol(不考虑N2O4).请填空:

 (1)混合气体中NO2的物质的量为________mol.

(2)将此组成的混合气体通入足量水中,剩余气体在标准状况下体积为________mL.

  (3)该反应中金属元素的化合价________(填升高、降低、不变).

  (4)写出该硝酸盐分解的化学方程式,标明电子转移的方向和数目.

题型:单项选择题

下列各项,不属带脉失约导致的妇科病证是()

A.带下病

B.滑胎

C.崩漏

D.胎动不安

E.子宫脱垂

题型:单项选择题

A: How many oranges do we need?        

B: Let me _______. Three.         [ ]

A. think      

B. think of      

C. think over    

D. think out

题型:单项选择题

—Where is Jack?  

—He_____ to London.  [ ]

A. has gone    

B. has been  

C.  have gone    

D. have been

更多题库