找静平衡的零部件在平行水平的导轨上停止摆动后,可以在部件的(),直至该零件可以在导轨上任何角度均能静止为止。
A、下方去重
B、下方加重
C、上方去重
D、上方加重
参考答案:A, D
阅读理解。
Come and look at the photo of an American family. The woman in the middle is Beth White. She is a
teacher. The old woman on her right is her mother. She is Mrs.White. The man on her left is her father,
Mr.White. He's an artist (画家). The other young (年轻的) woman is Doris White. She is her younger
sister. Doris White has two children. They are students. Leo Bush is her son and May Bush is her
daughter. May sits (坐) next to her grandmother.
1. This is family photo.
A. an American
B. an English
C. a Chinese
D. a American
2. There are people in the photo.
A. nine
B. eight
C. seven
D. six
3. Beth's family name is .
A. Smith
B. White
C. Bush
D. Beth White
4. Leo and May's father is .
A. Mr. White
B. Mr. Smith
C. Mr. Bush
D. Mr. Read
5. Mrs. White's May's .
A. mother's friend
B. grandmother
C. mother's sister
D. father's mother
以下关于割接说法正确的有()
A.割接网络部同意就可进行
B.割接需安排相关专业维护人员随工
C.施工完成及时上报网络部
D.割接完成需按时上报割接反馈信息表