单选题ARPA的MOON累积判断与（）有关。A 雷达天线转速B 天线平波速宽度C 脉冲重复周期D 以上都不对

Spring tides occur______．

A.when the moon is new or full

B.when the moon and sun have declination of the same name

C.only when the moon and sun are on the same sides of the earth

D.at the beginning of spring when the sun is over the equator

A.0.168.192.arpA.in-addr.dns

B.0.168.192.in-addr.arpA.dns

C.192.168.0.arpA.in-addr.dns

D.192.168.0.in-addr.arpA.dns

Which of the following is true about the motion of the moon?

[A] The moon and the sun are moving in the same plane.

[B] The moon revolved along the ecliptic.

[C] The moon moves faster than the sun.

[D] The position of the moon can be found changed in an hour's time.

Have you ever seen the man in the moon?If you look (11)______ at the moon on some nights. you can see the face of the man in the moon. Some people say that they can see an old man (12) ______ sticks. Others say a girl reading. These pictures are made by the mountains and plains of the moon.

Long ago people in England used to tell their children that the moon was (13)______ green cheese. Everyone knows that this is not true. The moon is a large round rock. It is completely (14)______ . There are no trees and plants of any kind on the moon. There are no rivers and seas. There are no living things. It never rains on the moon，and everything is covered with (15)______ . white dust. Not even a (16)______ can be heard on the moon.

Where the sun (17)______ on it，the moon is very hot. In the dark，however, it is cold (18) ______ ice. The moon is much smaller than the earth. It does not weigh as (19)______ as the earth. If you (20)______ to the moon，you would weigh six times less than you do. Even a fat man would be able to jump high off the ground.

(11)

A．closely

B．scarcely

C．daily

D．immediately

The average time between two high waters is 12 hours and 25 minutes because this is the time it takes for____.

A.The sun to be at the opposite side of the moon

B.The moon to be at the opposite side of the earth

C.The moon to be at its apogee

D.The sun and the moon to be on the same side

Believe it or not，the day when you can go to the moon is coming soon．You can go into space (11) space shuttle．It (12) about three days for the shuttle to go from the earth to the moon． The shuttle flies a long way to a space station． You can stay there for a short rest and then it will (13) you to the moon．

Now you can jump out of the shuttle． But you mustn't take (14) your spacesuit，because it is very hot in the daytime and very cold at night on the moon． The moon is much smaller than the earth． Things are (15) 0n the moon than they are on the earth． You can jump high every time you take a step． You will find that it is never tiring to walk on the moon． You don't need to take an umbrella or a raincoat with you，(16) there is no rain on the moon You can hear (17) because there is no air on the moon． And there are no animals or(18) living things there．

The moon moves more slowly than the earth，so one day on the moon is as long as two weeks on the earth and one night is just as long as two weeks on the earth． What could you do in (19 )long days and nights and in a silent world?' Now scientists are trying to make the (20) 0f the moon． But our earth is really a far better place to live，as long as we take good care of it，

( )11．

A．on

B．in

C．by

D．with

此题为判断题(对，错)。