【名词&注释】
超声波(ultrasonic)、金刚石(diamond)、可见光(visible light)、指挥中心(command center)、次声波(infrasonic wave)、看电视(watch television)
[单选题]“嫦娥一号”卫星接收地面指挥中心的运行指令进行变轨而奔向月球是通过一种波来实现的，这种波是
A. 微波
B. 可见光
C. 超声波
D. 次声波(infrasonic wave)
查看答案&解析
点击获取本科目所有试题
举一反三：
[单选题]8．
A. shopping
B. housework
C. homework
D. exercise
[单选题]下列物质由离子构成的是（ ）
A. 铜
氧气
金刚石
食盐
[单选题]23． Who can sing and play the violin?
A. MaHui
B. Petrus
C. Angela．
D. Albert
[单选题]8． My mother likes ________TV and father likes _________a book in the eve-ning．
A. to see ;to read
B. to watch; to watch
C. to see; to see
D. to watch; to read
[单选题]WhichofthefollowingisNOTtalkedaboutinthispassage?
A. ZhaoTaoisamiddleschoolstudent.
B. China’snewproductsareexcellent.
C. Thevolunteersareworkingveryhard.
D. Theexpogardenisnowverycrowded.
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