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【简答题】
某加油站能够对两辆车同时进行加油，现有六辆车同时来到加油站加油，各辆车加油所需要的时间分别为：A车7分钟，B车5分钟，C车4分钟，D车10分钟，E车3分钟，F车2分钟。这六辆车加油需要的总时间最少为多少分钟?（ ）
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举一反三
【简答题】The old couple decided to__________ a boy and a girl though they had three children of their own.
【单选题】The old couple decided to ______ a boy and a girl though they had three children of their own.
A.
adapt
B.
bring
C.
receive
D.
adopt
【简答题】一辆汽车开始以36km/h的速度行驶了15min,然后又以72km/h的速度行驶了5min,求这段时间内汽车的平均速度是____
【单选题】若竖盘为全圆式顺时针注记,在进行竖直角观测时,盘左读数为 L ,盘右读数为 R ,指标差为 X ,则盘左、盘右竖直角的对值是
A.
90°-L+X；R-X-270°
B.
90°-L-X；R-X-270°
C.
L+X-90°；270°-R-X
D.
L-X-90°；270°-R+X
【简答题】The old couple decided to ________ a boy and a girl though they had three of their own. A) adapt B) bring C) receive D) adopt
【单选题】The old couple decided to ______ a boy and a gift though they had three children of their own.
A.
adapt
B.
bring
C.
receive
D.
adopt
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