变换导气过程中提高汽/气比可以防止变换催化剂超温。
参考答案：对
连词成句。
1. to the next it's hospital (.)
2. to get I how cinema the can (?)
3. on left the is the bookstore (.)
4. is a your in there school library (?)
几名同学在日历的纵列上圈出三个数，算出它们的和，其中正确的一个是[ ]
A．38
B．18
C．75
D．57
