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【简答题】
硬质围岩衬砌背后积水冻胀，产生[填空]（称为冰劈作用），传递给衬砌。
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举一反三
【简答题】Go down this street until you reach the second traffic lights.英译汉
【简答题】Questions 5-8 Write the appropriate letter on your answer sheet. 【5】
【简答题】Questions 5-7 Answer the following questions using NO MORE THAN THREE WORDS/NUMBERS for each answer. Who decides the country in which the student will work in year three?
【简答题】Temporary traffic lights will operate at intersections with Main Street.
【简答题】如图所示，已知E1＝18V，r1＝1Ω，r2＝1Ω，E4＝10V各电阻R1＝4Ω，R2＝2Ω，R3＝6Ω，电压表的读数U1是28V，试求电源电压E2是多少A、B、C、D各点的电位。
【单选题】The street lights()_on when night falls.
A.
will have gone
B.
will have been going
C.
will be going
D.
will be gone
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