问题 单项选择题

世界卫生组织以15岁组的牙石平均检出区段数作为牙周状况的评价标准,牙周状况等级为低的牙石检出平均区段数是

A.1.2
B.1.5
C.2.5
D.3.2
E.3.6

答案

参考答案:C

阅读理解

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

单项选择题