下列关于硅及其化合物的说法正确的是 A．我国著名的陶瓷含有的主要成份是硅酸盐 B

阅读下面短文，判断下列句子是否符合短文内容，符合用（T)表 示，不符合用(F)表示。

     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 bad 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.

( )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.

简述学校教育的地位。

脉短如豆，滑数有力的是( )

A．促脉
B．疾脉
C．实脉
D．动脉
E．短脉

如图是A、B两种固体物质的溶解度曲线图，请回答下列问题：

（1）P点表示t₁℃时，A、B两物质的溶解度    38   。

（2）在其他条件不变的情况下,若把t₁℃时A、B的饱和溶液分别升温至t₂℃，此时两种溶液中溶质的质量分数关系为A    39   B（填“＞”、“＜”或“＝”）。

（3）t₂℃时，将30 g B物质加入50 g水中，所得溶液是    40   （填“饱和”或“不饱和”）溶液，所得溶液的质量为    41    g。

哺乳期合理用药的正确做法是（）

A.随意用药及减少哺乳

B.随意用药及随意哺乳

C.少量用药及随意哺乳

D.大量用药及随意哺乳

E.服药期间暂时不哺乳或少哺乳