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【单选题】
直流电治疗用衬垫,一般要求的厚度是A.
四层绒布厚
B.
1cm厚
C.
二层绒布厚
D.
1.5cm厚
E.
2cm厚
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举一反三
【单选题】Helen ____ her key in the office so she had to wait until her husband ________ home.
A.
had left; came
B.
has left; comes
C.
left; had come
D.
had left; would come
【简答题】Helen _____ her key in the office so she had to wait until her husband came home. (left)
【简答题】“__________”原指古代的宫室,前面是堂,后面是室。登上厅堂,才能进入内室。后比喻学问或技能____________,达到很高的水平。
【单选题】Helen _______ her keys in the office so she had to wait until her husband _______ home. A. has left; comes B. left; had come C. had left ;came D. had left; would come
A.
a
B.
b
C.
c
D.
d
【简答题】“()”原指古代的宫室,前面是堂,后面是室。登上厅堂,才能进入内室。后比喻学问或技能从浅到深,达到很高的水平。
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