中央银行公开市场业务的优点是（）。 A.主动权在政府 B.主动权在企业 C.主动权在

说说下列语句的描写方式。

（1）何满子六岁，剃个光葫芦头，天灵盖上留着个木梳背儿。（   ）

（2）一丈青大娘勃然大怒，老大一个耳刮子抡圆了扇过去，那个年轻的纤夫就像风吹乍蓬，转了三转，拧了三圈儿，满脸开花，口鼻出血。（   ）

根据短文内容和所给中文提示，在空白处填入单词。每空限填一词。

Sunday，May lst

I have been here in Singapore __小题1:__(和) my family for a week. This country is actually a ____小题2:____(城市). It’s small but clean. This morning it was __小题3:_(晴朗的)，so we got up __小题4:_(早) and went to the beach. I __小题5:__(打) beach volleyball with others. My parents walked __小题6:__(缓慢地) on the soft sand. We __小题7:__(全体) had a good time there. In the evening，we arrived at Night Safari. We saw a young _小题8:_(老虎). It was very cute!

Tomorrow my parents will __小题9:__(带去) me to the Singapore Flyer，which is the __小题10:__(最大的) Ferris wheel in the world! It’s an exciting place. I am looking forward to it.

读下图，回答问题

（1）写出图中字母所表示的大洲的名称

A．______         B．______        C．______        D．______

（2）写出图中数字所表示的大洋的名称

①______         ②______       ③______         ④______．

11. It is because people are likely to stay indoors ______ the virus can spread easily ______ people often catch colds.

A．and, that

B．so, that

C．therefore, so

D．that, that

静止在匀强磁场中的某种放射性元素的原子核放出一个α粒子，其速度方向与磁场方向垂直，测得α粒子与反冲核轨道半径之比为30：1，如图所示，则（）

A．粒子和反冲核的动量大小相等、方向相反

B．反冲核的原子序数为62

C．原放射性元素的原子序数是62

D．反冲核与α粒子的速率之比为1：62