凡高度在4m以上建筑物施工的必须支搭安全水平网,网底距地不小于()。
参考答案:3m
—I’d like to make an appointment with Doctor Smith.Would 9:00 tomorrow be all right?
— .Her schedule is full in the morning.
A.Yes, she’s free then
B.I’m afraid not
C.You must be joking
D.Wel1, it depends
商业信用是指企业之间相互提供的,与商品的生产和流通有关的信用,具体形式包括()。
A.现金交易
B.折扣
C.赊销
D.预付
E.分期付款