【名词&注释】
中位数(median)、比热容(specific heat capacity)、运载火箭(launch vehicle)、答题卡(answer sheet)、怎么办、空白处
[单选题]下列现象中，用物理知识解释正确的是【】
A. 风吹过，人便感到凉爽，主要是因为流动的空气加快了人身上汗液的蒸发
B. 吃冰棒感觉凉爽，是因为升华要吸热
C. 物体的温度高，是因为它具有较多的热量
D. 运载火箭的燃料采用液氢，是因为液氢的比热容大
查看答案&解析
举一反三：
[单选题]有一组数据：10，30，50，50，70．它们的中位数是
A. 30
B. 45
C. 50
D. 70
[单选题]what is the theme of the story?
A. Saving lives brings people a sense of happiness
B. Fishing provides excitement for children
C. It’s necessary to live in harmony with animals
D. it’s vital to protect the environment
[多选题]C请阅读以下相关信息，然后匹配他们。并将答案的字母编号填在题前的括号内或按当地要求在指定位置处填写。此题答案不能填涂在答题卡上。
A. 12.
B. ( )66.Miss Jiang is an English teacher. She wants to teach her students better .
C. ( )67. Jenny is very interested in computer . She wants know more about it .
D. ( )68.Mary is a schoolgirl , she is worried about her math . She doesn't know what to do .
E. ( )69. Kate has a 10-year-old son . But her son doen’t like to talk with her . Kate doesn’t know how to do it .
F. ( )70. Sandy’s parents are very busy with their work . She wants to help them do some housework.
G. How to Learn Math
H. How to Communicate with Children
I. How to Teach English Well
J. How to Make the Waste Useful
K. How to Cook Delicious Food
L. F. How to Use the Internet
M. G. How to Be Healthy
N. 66._________
O. How to Learn Math
P. How to Communicate with Children
Q. How to Teach English Well
R. How to Make the Waste Useful
S. How to Cook Delicious Food
T. F. How to Use the Internet
U. G. How to Be Healthy
[单选题]_____________( )53.
A. and
B. the
C. /
D. to
[单选题]29． — What should I do，doctor?—_________ healthy，you should take more exercise．
A. Keep
B. Keeping
C. To keep
D. Having kept
[单选题]3的倒数是（ ）
A. 3
B. -3
C. 1/3
D. D-1/3
[单选题]19．
A. to have
B. have
C. having
D. had
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