All_____for time off must go through the Human Resources Department first.
A. request
B. requesting
C. requested
D. requests
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假设团体也称()
A. 工作团体
B. 实际团体
C. 正式团体
D. 统计团体
Any visitors to the production facilities must____a security pass from the information deskat the front entrance.
A. allow
B. achieve
C. obtain
D. remind
Register your name and address on the Web site in order to ____a purchase online.
A. make
B. shop
C. owe
D. use
35kv电力网电能输送的电压损失应不大于()
A. 5%
B. 8%
C. 10%
D. 15%