判断题 推销员一般比顾客提前5—10分钟到达约见地方。（    ）正确错误

单项选择题 All languages have two levels of usage: a _____ level and an informal level.（ ）A.communityB.componentC.barrierD.formal

单项选择题 The animal leopard is one of the Chinese Zodiac Animals. A. 对 B. 错