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【单选题】
I could do nothing but____that I did not know it.A.
pretend
B.
to pretend
C.
pretending
D.
pretends
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【简答题】判断下列各广义积分的敛散性，若收敛，计算其值：
【简答题】用定义判断下列广义积分的敛散性，若收敛，则求其值：
【单选题】听力原文：W: Oh, Jack, I'm glad I caught you. I want to cell you I have to skip the history study group session tonight. M: Really? That's too had. Aren't you feeling well? W: Oh, it's not bad. There's goi...
A.
She's unable to attend the study session.
B.
She has seen a doctor recently.
C.
She's concerned about medical care.
D.
She mentions the need for sore6 medical tests.
【简答题】判断下列各广义积分的敛散性，若收敛，计算其值：
【简答题】判断下列各广义积分的敛散性，若收敛，计算其值：
【简答题】判断下列各广义积分的敛散性，若收敛，计算其值：
【单选题】听力原文：W: Oh, Jack. Im glad I caught you. I want to tell you I have to skip the history study group session tonight. M: Really? Thats too bad. Arent you feeling well? W: Oh, its nothing bad. Theres goin...
A.
To suggest changes in the tuition fees.
B.
To improve the study skills of university students.
C.
To give people the opportunity to speak with a politician.
D.
To discuss graduation requirements for political science majors.
【简答题】判断下列各广义积分的敛散性，若收敛，计算其值：
【单选题】She never ________the amount of work her boss charged her with. [ ]
A.
objected to
B.
applied for
C.
replied to
D.
answered for
【简答题】判断下列各广义积分的敛散性，若收敛，计算其值：
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