To become a pilot, you must ________ at least 1000 hours of flying time.
A. clock
B. o'clock
C. clock up
D. clocking
查看答案
The ________ minimum wage in America was ＄6.95 in 2017.
A. average
B. average of
C. rage
D. on average
There will be a ________ standard against which a student’s performance will be measured.
A. nation
B. nationality
C. national
D. number
Most ________ in this company work a 39-hour week. Some work more.
A. employees
B. employer
C. employee
D. employers
在Excel中,要选取Sheet1、Sheet2、Sheet3三张工作表,不正确的操作是( )。
A. 按〈Shift〉键,分别单击Sheet1、Sheet2、Sheet3
B. 按〈Ctrl〉键,分别单击Sheet1、Sheet2、Sheet3
C. 分别单击Sheet1、Sheet2、Sheet3
D. 单击Sheet1,再按〈Shift〉键,同时单击Sheet3
微信支付 
支付宝支付