发育成桃子果皮的是[ ] A.子房壁 B.胚珠 C.子房 D.受精卵

题型:选择题

问题:

发育成桃子果皮的是[ ]

A.子房壁

B.胚珠

C.子房

D.受精卵

考点:果实和种子的形成
题型:选择题

阅读理解。

     Nowadays we can calculate time very accurately, but before the invention of the clocks, it was very difficult. One way people told the time was by

using sun-dials, but it was impossible to tell the time on cloudy days or at

night.

     The first clock was invented in China by Su Sung in 1088. The first clock

in England was invented 195 years later.

     The first watch was invented in Italy in 1462. Early watches were

different from today's in two ways. First, they only had an hour hand.  

Second, you could not wear them on your wrist.  You had to keep them in

your pocket, So they were called "pocket clocks".

     The first wrist watches came from Switzerland 328 years after the first

pocket clocks, but nobody bought them. They did not become popular for

a hundred years.

       根据短文内容 ,判断下列 句子的正误,正确的用 "A"表示,错误的用 " B"表示 。

(     )1. Before the clocks were invented, it's easy for people to tell the time.

(     )2. The first clock was invented in England in 1088.

(     )3. Early watches couldn't be wom on people's wrist.

(     )4. The wrist watches became popular at once when they were invented.

( )5. This passage talks about the invention and the development of clocks and watches.

题型:选择题

治疗盗汗或热病汗不出,应首选()。

A.后溪

B.阴郄

C.太溪

D.复溜

E.合谷

题型:选择题

患儿,4岁。昨天外出游玩。今天舌边尖溃烂,色赤疼痛,饮食困难,心烦不安,口干欲饮,小便短赤,舌尖红,苔薄黄。其治法是()

A.疏风散火,清热解毒

B.滋阴降火,引火归元

C.清心凉血,泻火解毒

D.疏风解表,泻火解毒

E.消食导滞,清热解毒

题型:选择题
若点(3,4)是反比例函数y=
m
x
图象上一点,那么此函数图象必经过(  )
A.(4,-3)B.(3,-4)C.(2,6)D.(2,-6)
题型:选择题

夫妻间的财产关系包括()。

A、抚养关系

B、财产关系

C、继承关系

D、身份关系

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