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【单选题】
The postage and any other additional charges will be _____.A.
at your account
B.
born by you
C.
at your expense
D.
for your expense
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反馈参考答案：
举一反三
【简答题】习题6.5 求下列函数的极值: (1)
【单选题】The air in big cities _____very dirty by factories.
A.
are often made
B.
is often made
C.
have often made
D.
has often made
【单选题】Do you know the student____________?
A.
whom I often talk
B.
with who I often talk
C.
I often talk with
D.
that I often talk
【单选题】Turn on the television or open a magazine and you ________ advertisements showing happy families. A. will often see B. often see C. are often seeing D. have often seen
A.
will often see
B.
often see
C.
are often seeing
D.
have often seen
【单选题】设计商业模式的五个步骤是()。
A.
调研、定价、盈利、整合、路径
B.
调研、定位、盈利、竞争力、路径
C.
调研、定价、盈利、战略、路径
D.
调研、定位、盈利、战略、路径
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