题目内容

"I thought you had planned to practice piano today." "I did nothing but _______ letters all day."

A. to write
B. wrote
C. write
D. writing

查看答案

搜索结果不匹配？点我反馈

更多问题

There were resources such as coal, iron, gold, and copper deep in the soil, but they remained _______.

A. discovered
B. to discover
C. being undiscovered
D. undiscovered

The president's tone of voice was _______ the students knew that the university authorities tookthe incident seriously.

A. such as
B. so that
C. as such
D. such that

下面哪项不属于表面完整性的内容( )

A. 表面形貌
B. 表面缺陷
C. 表面层物理力学性能
D. 表面加工纹理

利用试切好的工件或采用对刀装置,调整刀具相对工件加工表面位置的方法称为( )

A. 试切法
B. 调整法
C. 尺寸刀具法
D. 自动控制法