甲、乙、丙、丁四人平均植树30多棵,甲植树棵数是乙的23,乙植树棵数是丙的114

题型:解答题

问题:

甲、乙、丙、丁四人平均植树30多棵,甲植树棵数是乙的
2
3
,乙植树棵数是丙的1
1
4
,丁比甲还多植树3棵,那么丙植树多少棵?
考点:最大公因数(最大公约数),最小公倍数
题型:解答题

阅读理解。

     One Sunday, Cody decided to go sailing in his boat with his friend Dane, but Dane happened to be

away. Dane's brother Brett wanted to go instead though he did not know anything about sailing. Cody

agreed and they set out to sea.

     Soon they found themselves in a thick fog. Cody was sure they would be hit by a big ship.

Fortunately (幸运地) he saw a large buoy (浮标) through the fog and decided to tie the boat to it for

safety. As he was getting onto the buoy, however, he dropped the wet rope. The boat moved away in

the fog carrying Brett who did not know how to use the radio. He drifted (漂流) about and was not seen

until twelve hours later.

     Cody spent the night on the buoy. In the early morning he fell asleep and was having a dream when a

shout woke him up. A ship, the Good Hope, came up and he climbed onto it and thanked the captain.

The captain told him that Brett had been picked up by another ship and the ship's captain had sent out a

message.

根据短文内容,判断正(T)误(F)。

( )1. Cody went sailing in his boat with his friend's brother Brett.

(     )2. About sailing, Brett knew a little.

( )3. Soon they got into trouble because of the thick fog.

(     )4. They drifted about and were not seen until twelve hours later.

(     )5. Brett was saved by the ship, the Good Hope.

题型:解答题

关于原发性支气管肺癌的描述以下哪项是错误的()

A.根据其发生部位分为中央型、弥漫型和周围型

B.根据其生物学行为可分为小细胞肺癌和非小细胞肺癌

C.来自支气管表面上皮的癌包括腺癌、鳞癌和腺鳞癌等

D.大细胞癌属于腺癌的一种

E.鳞癌及小细胞癌的发生于吸烟密切相关

题型:解答题

罐车不办理准、米轨间直通运输。

题型:解答题

非成瘾性中枢性镇咳药是()

A.可待因

B.麻黄碱

C.异丙肾上腺素

D.喷托维林

E.氢化可的松

题型:解答题

齿轮泵正常运转时,突然出现出口压力降低甚至归零,其原因可能是()。

A、泵人口温度高

B、吸入管线漏气

C、泵效降低

D、A、B或C

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