什么是火法精炼？

下列哪些作用不是东莨菪碱的药理作用（）

A.镇静作用

B.拮抗哌替啶的镇痛作用

C.促进腺体分泌

D.促进吗啡及巴比妥类引起的呼吸抑制

E.用于冠心病人麻醉前用药阿托品好

The winds had finally died down,and the rains stopped.Paige and her parents were inside their house,sitting in the living room,which was dark except for a single candlelight.

“Let’s find out what’s going on outside,”Paige’s mom suggested as she turned on the small radio.

“…has moved out of the area,”an announcer’s voice boomed. “Winds reaching nearly 100 miles an hour passed through our town this morning. But,the worst is over,and it is safe to go outside.In fact,the sun is now peeking out from behind the…”

Suddenly,the radio went dead.The house was quiet again.

“Well,”Paige’s dad said, “at least we heard some good news,even if it was cut short.Let’s look out of the window and survey the damage.”

Paige ran to the window and looked outside.She saw tree branches lie on the lawn.The mailbox was broken,and some of the address letters and numbers on the mailbox were missing.

“The wind must have ripped(擦)them off,” Paige’s father noted.As he read the remaining letters he began to laugh.

The mailbox dispalyed “_ _RAIN.”

“It says “rain”,”Paige said. “That’s appropriate for a day like today!”

小题1:The weather event that took place that day in the story was        .

A．an earthquake

B．a hurricane

C．a flood

D．a fire小题2:The living room was dark because           .

A．there were no lamps

B．someone forgot to pay the electric bill

C．the electricity had been cut off

D．the wind blew out the candle小题3:After the storm had passed,Paige’s family felt           .

A．worried

B．disappointed

C．relieved

D．scared小题4:The family’s last name could have been          .

A．Germain

B．Crain

C．Syrain

D．Rain

科学家做过如下实验，把含有生长素的琼脂块放在一段燕麦胚芽鞘的形态学上端，把不含生长素的琼脂块作为接收块放在下端；另一实验是把一段燕麦胚芽鞘倒转过来，把形态学下端朝上，做同样的实验。请分析，经过一段时间后，接收块甲和接收块乙的成分有何变化（）

A.甲含有生长素，乙不含有

B.乙含有生长素，甲不含有

C.甲、乙都含有生长素

D.甲、乙都不含有生长素

在包含具有一对多关系的记录的分组的数据访问页上，应按( )分组记录，以提高加速度。

A．字段
B．表
C．表达式
D．以上都可以

可用郁金治疗的病证有（）。

A.气滞血瘀胸胁腹痛证

B.热病神昏证

C.癫痫痰闭证

D.肝胆湿热证

E.血热出血证