衡量工作绩效的前提是A．确定控制对象 B．选择控制的关键点 C．建立有效的信息反馈系

Lily practises _______ the piano very hard.

A．play

B．plays

C．playing

D．played

补全对话.

A: Do you have a pen pal?

B: Yes, I do. I have a boy pen pal. He's Pete.

A: ___1___?

B: He comes from Toronto, Canada.

A: ___2___?

B: He's tall with medium build, curly hair and blue eyes. Here is a photo of him.

A: ___3___?

B: He loves sports shows. Sports are his favorite.

A: ___4___?

B: Yes, I do. I want to go to Toronto and visit him next vacation.

A: ___5___?

B: It's warm in spring and not hot in summer. The weather is nice.

A: OK, I hope you have a good trip!

B: Thank you.

春秋决狱的主要原则是（）。

A.区分公罪与私罪

B.同居相隐

C.原心定罪

伤寒、副伤寒、疟疾、布氏杆菌病、血液病、过敏性休克（）。

A．中性粒细胞增多

B．中性粒细胞减少

C．嗜酸性粒细胞增多

D．单核细胞增多

E．淋巴细胞增多

通过限宽门每碰擦一次限宽门悬杆，应评判（）。

A.扣20分

B.不合格；

C.扣10分

D.扣5分