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【多选题】
提高实载率( )A.
意味着载运系数的提高
B.
使 V″/ （ βδγ ）有所下降
C.
导致单位变动成本和单位成本下降
D.
使得 F/Q 有所下降
E.
不影响单位成本增减变动
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举一反三
【单选题】I was talking with my mother on the phone when we were _______ suddenly.
A.
cut down
B.
cut off
C.
cut across
D.
cut back
【多选题】小肠是吸收的主要部位，因为
A.
小肠长达5～6米
B.
食物在小肠内已加工成可吸收形式
C.
小肠粘膜上皮的吞噬作用强
D.
食物在小肠内停留时间长
E.
小肠粘膜上有皱褶和绒毛
【单选题】Not earning enough money this month, I had to ____ my expenses. [ ]
A.
cut off
B.
cut in
C.
cut down
D.
cut across
【单选题】Could you ___ my meat ___for me please Daddy?
A.
cut, down
B.
cut, up
C.
cut, out
D.
cut, into
【单选题】Not making enough money last month, I had to ________ my expenses. [ ]
A.
cut in
B.
cut off
C.
cut across
D.
cut down
【单选题】My teacher said my composition was too long. I must ______ to about 3,000 words.
A.
cut it off
B.
cut it up
C.
cut it down
D.
cut it out
【单选题】I’m going to the hairdresser’s to________.
A.
have cut my hair
B.
cut my hair
C.
have my hair cut
D.
cut me my hair
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