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【单选题】
第一只盒子装有 5 只红球, 4 只;第二只盒子装有 4 只红球, 5 只。先从第一盒子中 2 只球放入第二盒中去,然后从第二盒子中一只球,求取到的概率。A.
77/99
B.
55/99
C.
67/99
D.
53/99
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举一反三
【单选题】“I usually go to work by bus.”“Why notby bike for a change?”()
A.
trying to go
B.
try going
C.
to try going
D.
try go
【简答题】I usually go to work by car.
【单选题】—How do you go to work? —I usually go to work _____.
A.
by a car
B.
in a car
C.
on car
D.
by car
【多选题】甲交给乙一张经付款银行承兑的汇票，作为向乙订货的预付款，乙在票据上背书后转给丙以偿还原欠丙的借款，丙于到期日向承兑银行提示取款，恰逢当地法院公告该行于当天起进行破产清理，因而被退票。丙随即向甲追索，甲以乙所交货物质次为由拒绝，并称已于十天前通知银行止付，止付通知以及理由也同时通知了乙。在此情况下丙再向乙追索。乙以票据系甲开立为由推诿不理。丙遂向法院起诉，被告为甲、乙与银行三方。以下关于本案的分析正...
A.
甲、乙与银行都在汇票上签过字，都是汇票的债务人
B.
甲作为出票人在承兑人是主债务人，，乙做了背书，为丙的前手，对后手承担保证付款，银行作为汇票的承兑人是汇票项下的主债务人
C.
根据票据的无因性特征，持票人丙可以向甲、乙与银行任何人要求付款和追索
D.
由于银行破产，丙不能向银行追偿
【单选题】I usually go to work on foot, but if the weather is bad, I will go by bus.我经常步行上班，如果天气不好，我会坐公交。 01010026
A.
I usually go to work by bus.
B.
I often go to work on foot.
C.
I never go to work on foot.
D.
I never go to work by bus.
【单选题】设a、b为有理数，下列命题正确的是（ ）
A.
若a≠b，则a 2 ≠b 2
B.
若|a|=|b|，则a=-b
C.
若a＞b，a 2 ＞b
D.
若a、b不全为零，则a 2 +b 2 ＞0
【单选题】— How do you go to work? — I usually go to work _____. [ ]
A.
by a car
B.
in a car
C.
on a car
D.
by cars
【单选题】How do you go to work? I usually go to work ____.
A.
by a car
B.
in a car
C.
on a car
D.
by cars
【单选题】—I'm doing a survey. Could you tell me ______? —Sure. I usually go to work at 7:00 am.
A.
why you go to work
B.
how you go to work
C.
when you go to work
D.
who you go to work with
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