He told me____bad news A、a B、a piece C、a piece of D、piece of
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Hetoldme____badnewsA、aB、apieceC、apieceofD、pieceofHetoldme____badnewsA、aB、apieceC、apieceofD、pieceofHe
He told me____bad news A、a B、a piece C、a piece of D、piece of
He told me____bad news A、a B、a piece C、a piece of D、piece of
He told me____bad news A、a B、a piece C、a piece of D、piece of
C,news不可数,但被a piece of 修饰就可数了.D不正确因为应该是pieces of.
AB 不考虑.
C
C，一则消息/新闻，量词用a piece of
选C
A
C
He told me____bad news A、a B、a piece C、a piece of D、piece of
.Jack was soon told _____ he did was not ne.Jack was soon told _____ he did was not necessary.that what which /
He-Ne激光器 价格
He he ni ne 是什么
he-ne激光器频率多少
He-Ne的波长是多少?
He Ne Ar 哪个稳定
叙述He-Ne激光器的工作原理
He-Ne激光的波长是多少?
he-ne激光的标准波长是多少
He told me ____late again
who did he told about
He told me he (打电话)me tomorrow.
He told me a story为什么tell变成了told?
He told as if he knew everything.还是He told as if he had known everything.
设计获得He-Ne激光器激光光谱的方法
影响He-Ne激光器输出功率的主要因素有哪些
he-ne激光器波长0.6328对应光斑的大小是多少?