问题
单项选择题
冶炼高W钢种时，为减少W的氧化，要注意（）。
A．较低的炉渣碱度
B．较高的氧化温度
C．较低的氧化温度
答案
参考答案：B
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冶炼高W钢种时，为减少W的氧化，要注意（）。
A．较低的炉渣碱度
B．较高的氧化温度
C．较低的氧化温度
参考答案：B
| 阅读理解。 Sandra, , Tommy and Sally are in the same class, but they like different (不同的) food. Here is a food list of their three meals (饭).
A. eggs B. milk C. fruit D. vegetables 2. _____ eats some fruit for lunch. A. Bill B. Sally C. Sandra D. Tommy 3. Tommy has _____ for dinner. A. meat and fruit B. ice cream C. meat and drinks D. fruit and vegetables 4. What does the word"list"mean (意思是) in Chinese? A. 价格 B. 说明 C. 清单 D. 单据 5. Which of the following is TRUE? A. The girls like vegetables. B. Sally doesn't eat chicken C. They all have fruit for dinner. D. Bill eats lots of fruit a day. |