问题
单项选择题
汽油用（）值标号。
A.戊烷
B.辛烷
C.己烷
答案
参考答案：B
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汽油用（）值标号。
A.戊烷
B.辛烷
C.己烷
参考答案：B
| 将下列各句变成否定句和一般疑问句并作肯定、否定的简短回答。 | |
| 1. His birthday is April 4th. ______________________________ ______________________________ 2. We have an Art Festival every year. ______________________________ ______________________________ 3. There are many children in the park. ______________________________ ______________________________ 4. Tom wants a big birthday cake. ______________________________ ______________________________ 5. Tim's uncle works in a bookshop. ______________________________ ______________________________ 6. The keys are under the sofa. ______________________________ ______________________________ |