问题
单项选择题
根据熔点的高低，石蜡又可分中等熔点蜡其熔点为（）℃。
A、45～50
B、30～60
C、50～70
D、56～62
答案
参考答案：A
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根据熔点的高低，石蜡又可分中等熔点蜡其熔点为（）℃。
A、45～50
B、30～60
C、50～70
D、56～62
参考答案：A
| 选用下列方框中动词的适当形式填空，每词只用一次。 | |
2. There are no calories in water, so you can drink it without ________ fat. 3. Bill is from England, but he can ________ Chinese. 4. The fruit is yellow and it _______ sour. 5. Last Sunday Millie's father _______ her a Walkman. 6. My mother ________ for less than six hours every night. 7. —Can you play football with us? —No, I'm _______ for my sister. 8. I want _______ a scientist when I grow up. |