问题
选择题
—Will you please go to see the movie Guanyinshan with me?
—No, I won't. I ______ already. [ ]
A. saw
B. have seen
C. see
D. will see
答案
答案:B
—Will you please go to see the movie Guanyinshan with me?
—No, I won't. I ______ already. [ ]
A. saw
B. have seen
C. see
D. will see
答案:B
(6分)形态各异的物质可按一定规律分类(用序号填空):
A盐酸 B氯化钾 C 氢氧化钙
D甲烷 E.五氧化二磷 F.氮气
题号 | 物质分类标准 | 字母序号 | 题号 | 物质分类标准 | 字母序号 |
(1) | 非金属氧化物 | (4) | 非金属单质 | ||
(2) | 易溶性盐 | (5) | 挥发性酸 | ||
(3) | 微溶性碱 | (6) | 最简单的有机物 |