单选题
Mr. Smith asked his secretary to ______ a new paragraph in the annual report she was typing.
A、
invade
B、
install
C、
insert
D、
inject
【正确答案】
C
【答案解析】
invade侵入，侵略；install安装；insert插入；inject注射。 该句中typing意为“打字”。
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