问题
单项选择题
硫化氢的毒性较一氧化碳大（）。
A.8~10倍
B.5~6倍
C.2~4倍
答案
参考答案：B
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硫化氢的毒性较一氧化碳大（）。
A.8~10倍
B.5~6倍
C.2~4倍
参考答案：B
| 从方框中选词填空。 | |
2. Justin has a computer game. He likes to ______ computer games. 3.—______ play basketball.—That ______ interesting. 4. I have a baseball ______. I like to play baseball. 5. My grandmother ______ a TV in her room. She ______ TV every day. 6. My friend has a great sports ______. He has all kinds balls in his room. |