分析煤样装入瓶中,不应超过瓶容积的()
A.1/3;
B.1/2;
C.3/4;
D.90%
参考答案:C
与婴儿沟通是通过()两种主要方式来实现的。
A、语言沟通与非语言沟通
B、游戏交流与生活协助
C、观察与思考
D、抚摸与微笑
We obey him, () we are afraid of him, () we honor and love him.
A.not for; but for
B.not that; but that
C.not as; but as
D.not since; but since