下列不属于招标文件的内容有( )。
A．投标须知
B．工程量清单
C．施工组织设计
D．拟签订合同的主要条款
参考答案：C
-Is your mother a doctor in Qilu Clinic? –No!But she there for ten years.
A．worked
B．has been working
C．has worked
D．had worked
TOEFL考试效力的有效期为（）。
A.1个月
B.2个月
C.6个月
D.12个月
