问题 多项选择题

关于流式细胞仪检测的前向散射光,下列描述正确的是()

A.激光束照射细胞时,光以相对轴较小角度向前方散射的讯号

B.用于检测细胞或其他粒子内部结构属性

C.又被称为小角散射

D.其强弱与细胞的体积大小成正比

E.是用于检测细胞或其他粒子物体的表面属性

答案

参考答案:A, C, D, E

判断题
完形填空

I can still remember the first day when I met my best friend. I hid behind my mother and she hid behind her grandmother,   1  to look at each other. But we soon lost the  2  and started playing with each other. In the 7th grade, I first lost touch with her. She was   3  family problems and I deserted her to be with the “cooler people”.   4  of my new friends like her as much as I did  5  they knew she had “problems”. However, every summer we would   6  sit at each other’s house and watch soap operas and talk about everything we liked.

It was last year when I   7   the problem. I guessed I was just too busy to catch up in high school to realize she   8  someone there for her. Well, she made a new “best friend” and so did I. Then I didn’t know why, but she started cutting herself!

She was diagnosed with clinical depression(抑郁症). I was very  9   at first, but with the late night calls, we still stayed in   10 . I wanted to be there for her since her new best friend   11  deserted her, since people were calling her   12 , and I knew I still   13 her like a sister.

Yesterday she came   14  me and said this, “I never knew what a best friend was   15  you were the only person that would stop me from cutting; the only person that ever made me feel better about myself and my  16 . You don’t know this but I was trying to kill myself one night when you   17  me and I was crying. I   18  you so much, and you didn’t even know you were   19  me.”

We both cried. And I guess a kind of lesson from my life so far is to never   20  your friends.

1.A.pleased       B.excited    C.afraid       D.disappointed

2.A.happiness   B.kindness  C.shyness     D.sadness

3.A.working out       B.answering for C.helping with D .going through

4.A.All           B.None  C.No   D.Every

5.A.because      B.though      C.while D.yet

6.A.sometimes  B.seldom     C.just  D.always

7.A.solved B.noticed     C.faced D.understood

8.A.asked        B.needed      C.had   D.left

9.A.mad           B.cardless    C.hopeful    D.upset

10.A.touch             B.bed   C.hospital    D.love

11.A.luckily     B.successfully     C.basically   D.calmly

12.A.selfish     B.crazy C.brave      D.lonely

13.A.believed in      B.waited for  C.cared about     D.replied to

14.A.with         B.after    C.upon  D.to

15.A.until        B.when    C.since   D.if

16.A.mistakes   B.parents       C.friends       D.problems

17.A.visited      B.encouraged   C.called      D.prevented

18.A.tell          B.owe      C.give  D.show

19.A.helping     B.reminding     C.cheating   D.praising

20.A.give up on       B.look back at   C.drop in at   D.look down on