单项选择题
W: I am so excited just to think about it! This is my first trip to Paris. I want to visit all the interesting places there. But I am afraid that I can’t find my way around there.M: Don’t worry about that. Just give me a call when you have trouble. I’ll be glad to show you around. I am so familiar with these places.Q: What does the man offer to do for the woman?（）
A．To take her to Paris.B．To show her what the interesting places are.C．To serve as her guide.D．To introduce her to his families.
单项选择题 一般在竣工之前，业主提供的工程预付款和进度款总额不超过合同价的（ ），其余尾款是工程竣工结算时支付的款额。
单项选择题 水和无机盐能进入细胞而有害物质不能进入，这主要是由于（）的作用。
未知题型 1990年，一份提交中央的报告说，理论上的凯恩斯主义和实践中的罗斯福新政，实际上是把计划用作国家干预的一种手段，从那时候起，计划与市场相结合成为世界经济体制优化的普遍趋势，据此可知，该报告的主旨是()
