Measures have been taken to prevent accidents, but much ______ for more improvement.A.remains to be

题目简介

Measures have been taken to prevent accidents, but much ______ for more improvement.A.remains to be

题目详情


Measures have been taken to prevent accidents, but much ______ for more improvement.
A.remains to be doneB.is remained to do
C.remains to doD.is remained to be done
题型:单选题难度:偏易来源:不详

答案

A

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