组成核酸的糖类，在结构上它属于[ ] A．多糖 B．单糖 C．二糖 D．糖元

The headmaster asked the pupils   __   too late on weekdays.   [ ]

A. not get up

B. not to get up

C. don't get up

D. to not get up

补偿原则和保险利益原则

试述工作接地的作用？

In regards to shareholder-sponsored resolutions, which of the following would NOT be something investors should look at and consider（）

A. Whether the firm requires a simple two-thirds or other supermajority vote for passing a shareholder resolution.

B. Whether shareholders can request a special shareholder meeting to consider specific issues.

C. Whether national regulatory agencies have pressured firms to act on the terms of any approved shareowner initiatives.

理论数就是假定各总体率相同时计算出的各类观察数。