倒三角支撑单经处理回到发单人评价环节，达到（）时间发单人仍没进行人工评价，则系统默认评价为中评。
A.2天
B.3天
C.5天
D.10天
参考答案：C
The school advisers help you talk through your problems but they don't give you any()direct.
A. solution
B. target
C. measure
D. function
请从所给四个选项中选择最适合的一项填在问号处，使之呈现一定的规律性。（）
A．A
B．B
C．C
D．D
