单项选择题

Professor，would you slow down a bit，please？I can’t （）you.

A.keep up with
B.put up with
C.make up to
D.hold on to

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单项选择题
（）is software the converts high-level language statements into machine language once at a time，in succession.

A.Compiler
B.Language translator
C.Assembler
D.Interpreter
单项选择题
The gifts he brought from Britain（）last week.

A.sent out（送出）
B.were sent out
C.have sent out
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