问题 单项选择题 A1/A2型题

单纯性二尖瓣狭窄时,首先发生代偿性肥大和扩张的是()

A.左心室

B.右心室

C.左心房

D.左房、左室同时发生

E.左房、右室同时发生

答案

参考答案:C

解析:二尖瓣狭窄早期左心室未受累及,在左心室的舒张期,左心房血流入左心室受阻,左心房代偿性扩张。进一步发生肺小动脉内膜增厚,肺动脉压持续升高致右心室代偿性肥大,继而出现右心房肥大。整个心脏X线表现为倒置的“梨形心”。故选C。

判断题
阅读理解

IV.阅读理解(共11小题,每题2分,满分22分)

阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。

A

It all began as we were standing in front of the bathroom mirror, while I fixed Amanda's blonde hair. I said, “I love you, AmandA.” “And, I love you,” she replieD.“Well, I love you more.” Her eyes lit up as she recognized the cue (暗示) for the start of another “I love you more” match. “Nuh-uh,” she laugheD.“I love you the most.” “I love you bigger than a volcano!” I countered---a favorite family phrase in these battles of love. “But, Mom, I love you from here to ChinA.” A country she’s learning about from our new neighbors up the street.

We volleyed back and forth a few favorite lines. “I love you more than peanut butter.” “Well, I love you more than television.” “I even love you more than bubble gum.” It was my turn again, and I made the move that usually brought victory. “I love you bigger than the universe!” On this day, however, Amanda was not going to give up. I could see she was thinking. “Mom,” she said in a quiet voice, “I love you more than myself.”

I stopped, surprised by her sincerity. Here I thought I knew more than she diD.I thought I knew at least everything that she knew. But I didn’t know this. My four-year-old daughter knows more about love than her 28-year-old mom.

61.From the passage, we can know the two people _____________.

A.often quarreled with each other     B.felt bored about the real life

C. were fixing each other’s hair     D. loved each other deeply

62.Which is the best title for this passage?

A. I Love You More         B. My Daughter Grows Up

C. Parents’ Love               D.Children’s Love