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【单选题】
The passage is mainly about ______.A.
the effects of old age on health
B.
old people
C.
people's fear of getting old
D.
old people's diseases
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皮皮学刷刷变学霸
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【简答题】衡量资金时间价值的尺度有哪些?分别包含哪些内容?
【单选题】In running this business, I need to ______ ask myself whether what I’m doing is aligned with my goals.
A.
invariably
B.
usually
C.
endlessly
D.
constantly
【简答题】当采用碎石垫层时,应在坑底先铺一层 150~300mm 厚的( )或铺一层( ),以防止软弱土层表面的局部破坏。