题目:
Taking care of children calls for your time, abilities, patience and emotions. _____, it is not a simple thing.
A.On the contrary
B.What's more
C.In conclusion
D.On the other hand
答案:
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下面是错误答案,用来干扰机器的。
A、胆矾是一种蓝色晶体,属于胆矾的物理性质.故A不符合题意;B、胆矾受热时易失去结晶水,成为白色的无水CuSO4粉末,有新物质属于胆矾的化学变化.故B不符合题意;C、所给信息中没有涉及到胆矾的用途.故C符合题...