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【单选题】
如果变量X与变量Y的关系是变量M的函数,则变量M是( )。
A.
混淆变量
B.
调节变量
C.
中介变量
D.
以上皆否
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【单选题】空调在运行中,若低压表指示过高,高压表指示过低,说明故障在
A.
压缩机
B.
膨胀阀
C.
蒸发器
D.
鼓风机
【单选题】Mary _____ her bike to school every day. [     ]
A.
takes
B.
rides
C.
starts
【简答题】完形填空。 It was almost 9:00 p. m. When Mia Janson left her office to go home,it was 1 .She started her car and she 2 down the dark road that led to her house in the country.She 3 the radio and  sang song...
【简答题】Protecting Copyright Having finished her homework, Ma Li wants some music. As usual, she starts her computer and goes to Baidu.com to download music files. But this time she is surprised when an annou...
【单选题】Alice Walker makes her living by writing, and her poems, short stories, and novels have won many awards and fellowships for her. She was born in Eatonton, Georgia. She went to public school there, and...
A.
Alice Walker's reflections on Langston Hughes
B.
The influence of Alice Walker on the writing of Langston Hughes
C.
Langston Hughes book about Alice Walker
D.
A comparison of the children of Alice Walker and that of Langston Hughes
【单选题】采用钢材修建,被视为现代桥梁的典型代表是( )
A.
英国塞文河桥
B.
英国福思湾铁路桥
C.
加拿大魁北克桥
D.
悉尼铁桥
【简答题】I _____ her not to walk on the thin ice but she wouldnot listen to me. A. warned    B. persuaded    C.suggested    D. noticed
【单选题】两端呈花环状,其内孔是由2个正六边形相互同心错开30°而成的专用工具是()。
A.
套筒扳手
B.
开口扳手
C.
梅花扳手
D.
活动扳手
【单选题】With no one ___her, she starts washing herself.
A.
to watch
B.
watched
C.
watch
D.
watching
【简答题】Little Lady Starts Big War Harriet Beecher Stowe had poured her heart into her anti-slavery(反对度) book Uncle Tom&39;s Cabin. (46) The publisher was so doubtful that he wanted her to split the publis...
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