下列属于职业道德特征的有（）。
A.实践性
B.行业性
C.谨慎性
D.多样性
参考答案：A, B, D
用所给词的适当形式完成下列句子。
1. Lingling ______ (have) a headache yestaday.
2. Today she ______ (have) got a fever.
3. Sam had lots of ______ (chocolate biscuit) yesterday.
How much does the train ticket _____ from Shijiazhuang to Beijing?[ ]
A. cost
B. spend
C. take
D. pay
