显微镜的物镜越长,则放大倍数( )
A.越大
B.越小
C.放大倍数与镜长度无关
D.不能确定
显微镜的物镜越长,放大倍数越大,目镜越长,放大倍数越小;反之也成立.
故选:A
介词填空。
1. Happy New Year ____ you.
2. ____ Sunday morning, I will go to the zoo.
3. The boy ____ a blue coat is Zhang Hao.
4. We work hard ____ school.
5. It's time ____ supper.
6. Your birthday is ____ April 6.
7. I go home ____ 4:30 in the afternoon.
8. I have lunch ____ my family.
9. We are playing catch ____ Li Ming's ball.
10. We go to school ____ bus.
若三个月内预警信号未解除或预计三个月预警信号不能解除的,原则上就要实施(),化解风险。
A、停止发放新贷款
B、补充担保物或增加担保人
C、客户退出
D、列入重点观察名单