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参考答案：
举一反三
【判断题】They had been washed before I got home.()
A.
正确
B.
错误
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【单选题】The old man bought a ticket ______.
A.
after he got on the train
B.
before he got on the train
C.
as soon as the conductor told him to buy one
查看完整题目与答案
【多选题】B2B网上交易市场 从交易空间范围进行划分为( ) 。
A.
水平综合型
B.
行业垂直型
C.
外贸B2B平台
D.
内贸B2B平台
查看完整题目与答案
【判断题】储藏期间进行合理的通风换气是马铃薯安全储藏的一个重要措施
A.
正确
B.
错误
查看完整题目与答案
【简答题】光衰减器主要有两种类型:( ),( )。
查看完整题目与答案
【单选题】-- When did you_____?    -- I’ve_____ _for two months.
A.
got married; been married
B.
be marred; been married
C.
get married; got married
D.
get marred; marred
查看完整题目与答案
【简答题】某火电厂有两台机组共同向负荷供电,其耗量特性和约束条件分别为: F 1 =0.02P 1 2 +2P 1 +10t/h , 20MW≤P 1 ≤60MW ; F 2 =0.03P 2 2 +3P 2 +16t/h , 20MW≤P 2 ≤60MW ; 求当有功功率负荷为 80MW 时的经济分配 方案, 并计算最优分配方案比平均分配方案每小时节约多少煤炭 。
查看完整题目与答案
【单选题】转子式机油泵的进出油孔设在( )上。
A.
外转子
B.
内转子
C.
泵轴
D.
泵体
查看完整题目与答案
【单选题】He soon ______from failure, and promised to work harder than before.
A.
got across
B.
got through
C.
got over
D.
got away
查看完整题目与答案
【单选题】They ________ with each other for two years before they got married. [     ]
A.
had fallen in love
B.
got in love
C.
had been in love
D.
fell in love
查看完整题目与答案
相关题目：
【判断题】They had been washed before I got home.()
A.
正确
B.
错误
查看完整题目与答案
【单选题】The old man bought a ticket ______.
A.
after he got on the train
B.
before he got on the train
C.
as soon as the conductor told him to buy one
查看完整题目与答案
【多选题】B2B网上交易市场 从交易空间范围进行划分为( ) 。
A.
水平综合型
B.
行业垂直型
C.
外贸B2B平台
D.
内贸B2B平台
查看完整题目与答案
【判断题】储藏期间进行合理的通风换气是马铃薯安全储藏的一个重要措施
A.
正确
B.
错误
查看完整题目与答案
【简答题】光衰减器主要有两种类型:( ),( )。
查看完整题目与答案
【单选题】-- When did you_____?    -- I’ve_____ _for two months.
A.
got married; been married
B.
be marred; been married
C.
get married; got married
D.
get marred; marred
查看完整题目与答案
【简答题】某火电厂有两台机组共同向负荷供电,其耗量特性和约束条件分别为: F 1 =0.02P 1 2 +2P 1 +10t/h , 20MW≤P 1 ≤60MW ; F 2 =0.03P 2 2 +3P 2 +16t/h , 20MW≤P 2 ≤60MW ; 求当有功功率负荷为 80MW 时的经济分配 方案, 并计算最优分配方案比平均分配方案每小时节约多少煤炭 。
查看完整题目与答案
【单选题】转子式机油泵的进出油孔设在( )上。
A.
外转子
B.
内转子
C.
泵轴
D.
泵体
查看完整题目与答案
【单选题】He soon ______from failure, and promised to work harder than before.
A.
got across
B.
got through
C.
got over
D.
got away
查看完整题目与答案
【单选题】They ________ with each other for two years before they got married. [     ]
A.
had fallen in love
B.
got in love
C.
had been in love
D.
fell in love
查看完整题目与答案
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