題目列表(包括答案和解析)
This robot is supposed to save a lot of labor, but it remains a problem if it ______.
A. is B. saves C. does D. has
This robot is supposed to save a lot of labor, but it remains a problem if it ______.
A. is B. saves C. does D. has
This robot is supposed to save a lot of labor, but it remains a problem
if it ______.
A. is B. saves C. does D. has
This robot is supposed to save a lot of labor, but it remains a problem if it ______.
|
A．is |
B．saves |
C．does |
D．has |
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