It is essential that all these features____twice.
It is essential that all these features____twice.
A.being checked
B.are checked
C.checked
D.be checked
正确答案是D
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It is essential that all these features____twice.
A.being checked
B.are checked
C.checked
D.be checked
正确答案是D
扫描二维码免费使用微信小程序搜题/刷题/查看解析。
版权声明：本文由翰林刷题小程序授权发布，如需转载请注明出处。