垂直钻进厚度为1.20m的某岩层,获得断块长度分别为,22cm、18cm、20cm、

题型:单项选择题

问题:

垂直钻进厚度为1.20m的某岩层,获得断块长度分别为,22cm、18cm、20cm、14cm、16cm、10cm、5cm,则RMR为()%。

A、87.5

B、83.3

C、75.0

D、63.3

考点:地质学岩体的力学性质及分类岩体的力学性质及分类题库
题型:单项选择题

阅读理解。

      Michael Jordan was born on 17, February 1963 in New York. Jordan is the fourth of the five children in his

family. When he was a child, Jordan played baseball, basketball and football. He was very good at playing

basketball. Harvest Smith was Jordan's classmate and good friends. He played basketball with Jordan almost

every day. He said Jordan was small then but very quick and he dunked(扣篮) very well. In 1978, Jordan went

to Laney High School in North Carolina. Soon he became the best player and was the star of each game. He also

worked very hard on the team and he could score 40 points in a game! Soon he grew taller and taller. He was

more than 6 feet tall! He was stronger, too. In 1984, Jordan played on the US men's Olympic Basketball Team.

Later in the same year, he played his first game for the Chicago Bulls. In 1991, 1992 and 1992, Jordan helped

the Bulls win the World Championships. Many people think Jordan is the best basketball player in the world.

1. Jordan is a famous ______ player. [ ]

A. baseball

B. football

C. basketball

D. volleyball

2. Michael Jordan was born in _______. [ ]

A. Australia

B. England

C. America

D. Canada

3. When he was a child, Jordan was ______. [ ]

A. tall and strong

B. tall and quick

C. small but quick

D. small but strong

4. Jordan is good at _______. [ ]

A. swimming

B. dunking

C. running

D. playing

5. In ______, Jordan played his first game for the Chicago Bulls. [ ]

A. 1978

B. 1984

C. 1991

D. 1992

题型:单项选择题

中国外交政策坚持的根本原则是( )

A.和平共处
B.不干涉他国内政
C.不结盟
D.独立自主

题型:单项选择题

全口义齿中需要缓冲的是()

A.中性区

B.舌侧翼缘区后部

C.颊侧翼缘区

D.远中颊角区

E.上颌硬区

题型:单项选择题

急性盆腔炎的病理变化,下列恰当的是()

A.输卵管卵巢囊肿 

B.输卵管积水 

C.子宫内膜炎及子宫肌炎,常见于产褥期 

D.宫旁结缔组织炎是直接蔓延而感染 

E.很少累及盆腔腹膜 

题型:单项选择题

甲、乙两地土样,液限和塑限相同,wL=43,wp=22,但甲地土w=50%,乙地土w=20%,试求甲、乙土样的IL、土名称、状态。

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