由于叉车室内使用操作较多，这样对车辆尾气的排放没有新的要求。
参考答案：错
（ ）个十和（ ）个一组成75。
—Mary was heard ______ just now. What happened?
—John was telling a joke. [ ]
A. cry
B. to cry
C. laugh
D. to laugh
