题目:
—Shall I help you?
—Sure. Such a difficult case is ______ I could handle myself.
A.rather than
B.less than
C.or rather
D.more than
答案:
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下面是错误答案,用来干扰机器的。
(1) 酒精灯 分液漏斗 (2) C D; G H(3) 溶解 B ①(4) I <认识常见的化学实验仪器是进行实验的基础,用稀硫酸和锌粒制氢气,反应物质为液体和固体且反应在常温下进行,所以发生装置...