以下委托方式中，需要由证券经纪商代为填写委托书的方式有( )。 A．柜台委托 B．

补全对话。

A: 1______ season do you like beat in the year?

B: I like spring best.

A: 2______

B: Because everything begins to 3______ in spring. I think it's the best time for studies.

A: Do you like summer?

B: Yes, I do. I enjoy 4______ very much. What 5______ you?

A: I enjoy swimming, too. Autumn is a cool season, 6______ it?

B: Yes, it is. It's the 7______ time. The farmers are very 8______ at this time of a year.

A: What do you usually do at this time?

B: I usually go to 9______ them with the apple-picking.

A: What's the weather like in winter?

B: It's very cold. It often 10______ heavily.

结核分枝杆菌生长缓慢，最快的分裂速度为（）

A.14小时一代

B.18小时一代

C.50小时一代

D.20小时一代

E.24小时一代

青铜是人类最早使用的铜锡合金，下列说法中不正确的

是(  )

A．青铜属于纯净物

B．青铜属于金属材料

C．青铜的硬度比铜大

D．青铜耐腐蚀，易铸造成形

可能产生有害污染物的保藏方式是（）

A.辐照保藏法

B.微波杀菌法

C.高温灭菌法

D.发酵法

E.熏制法

下面哪一本书不足"四书"之一？（）

A.《大学》

B.《春秋》

C.《孟子》

D.《中庸》