微粉硅胶在片剂处方中的作用为 A．崩解剂 B．抗氧剂 C．助流剂 D．促渗剂 E．稀

阅读理解。

　　Mother's Day is a holiday for mothers.It is celebrated in the United States,

English,India and some other countries.In a short time,it becomes widely

celebrated.Mother's Day falls on the second Sunday in May.On that day,many

people send gifts(礼物)of love to their mothers.Those whose mothers are still

living often wear a pink(粉红色)or red rose(玫瑰)or carnation(康乃馨花),

while those whose mothers are dead wear a white one.

　　The idea of a day for mothers was first given by Miss Anna Jarvis of

Philadelphia.As a result of her hard work,the celebration of the first American

Mother's Day was held in Philadelphia on May 10,1908.Soon the holiday

became popular all over the country and around the world.

　　In China,people do the same on the day for mothers.And,in some cities,

people sometimes ask a song to be broadcast(广播)for his or her mother only.

This might cost a little money for some of them,but,as it is said,"Love is

invaluable."

1. Mother's Day ________.

A. is a holiday for mothers

B. is celebrated in the United States only

C. falls on May 10 every year

D. was given by Miss Anna Jarvis

2. On Mother's Day,people ________.

A. send some flowers to their mothers

B. wear a pink or red rose or carnation

C. wear a white flower

D. send gifts of love to their mothers

3. "Love is invaluable."Here the word "invaluable" means "________".

A. 美好的

B. 无价的

C. 永恒的

D. 无私的

制订地面水水质卫生标准的原则是（）。

A.防止地面水传播疾病

B.防止地面水引起急，慢性中毒及远期效应

C.保证地面水感官性状良好

D.保证地面水自净过程正常进行

E.以上都是

关于保温工程质量的说法，正确的是（）。

A.屋面泡沫混凝土分层浇筑、终凝后应进行至少14d的保湿养护

B.屋面保温材料必须在环境温度零度以上施工

C.在5级以上大风天气和雨天外墙保温工程不得施工

D.底层距室外地面3m高的范围内须铺设加强网

红外测温仪不能对准（）测量。

（）, which consisted of seven short blasts and one prolonged blast, all passengers have to go to their assembly station.

A.When the distress alert is sounded

B.When the emergency equipment is switching on

C.When the general emergency alarm is sounded

D.When the distress broadcast is sounded