应定期对钢管对口器进行（），确保对口器的对口精度。
A、检查
B、检验
C、校正
D、清理
参考答案：C
—Will Mr. Green be able to see me at 10:00 ?
—Sorry, but he fully until 3:30 unless there's a cancellation.[ ]
A. has occupied
B. will occopy
C. is occupied
D. has been occupied
需消耗ATP过程是（）
A．6-磷酸果糖→1，6-双磷酸果糖
B．3-磷酸甘油酸→丙酮酸
C．丙酮酸→乳酸
D．6-磷酸葡萄糖→6-磷酸果糖
