菜单纸张选择时应考虑（）等因素。
A.菜单的使用方法
B.餐饮企业的档次
C.纸张的费用
D.印制效果
参考答案：A, B, C, D
-----It is long since we met last. Haven’t you graduated from college yet?
----- _____. I ____ English for 3 years in Lanzhou University.
A．No; study
B．Yes; have studied
C．No; am studying
D．Yes; studied
终末血尿的血液来自
A．肾
B．膀胱顶部
C．输尿管
D．膀胱颈部
E．前 * *
