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题目：
单选题
A提高研究对象的依从性
B增强研究对象的代表性
C增强试验组和对照组的可比性
D使试验组和对照组都受益
E降低试验组的失访率
答案：
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县级以上地方各级政府财政部门应当自本级人民代表大会批准本级政府预算之日起（）日内，批复本级各部门预算。
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下面关于预测编码的说法中，不正确的是（）。
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网格计算系统具有高度的异构性
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The easy way out isn’t always easiest. I learned that lesson when I decided to treat Doug, my husband of one month, to a special meal. I glanced through my cook book and chose a menu which included homemade bread. Knowing the bread would take time. I started on it as soon as Doug left for work. As I was not experienced in cooking, I thought if a dozen was good, two dozen would be better, so I doubled everything. As Doug loved oranges, I also opened a can of orange and poured it all into the bowl. Soon there was a sticky dough covered with ugly yellowish marks. Realizing I had been defeated, I put the dough in the rubbish bin outside so I wouldn’t have to face Doug laughing at my work. I went on preparing the rest of the meal, and, when Doug got home, we sat down to Cornish chicken with rice. He tried to enjoy the meal but seemed disturbed. Twice he got up and went outside, saying he thought he heard a noise. The third time he left, I went to the windows to see what he was doing. Looking out, I saw Doug standing about three feet from the rubbish bin, holding the lid up with a stick and looking into the container. When I came out of the house, he dropped the stick and explained that there was something alive in out rubbish bin. Picking up the stick again, he held the lid up enough for me to see. I felt cold. But I stepped closer and looked harder. Without doubt it was my work. The hot sun had caused the dough to double in size and the fermenting yeast made the surface shake and sigh as though it were breathing. I had to admit what the living thing was and why it was there. I don't know who was more embarrassed by the whole thing—Doug or me. Why did the woman put the dough in the rubbish bin?（）
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X线胶片特性曲线的直线部是指（）。
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进行丝绒座椅的清洁护理时应选用的清洁剂（）。
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下列关于甘草的说法正确的有：（）
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下面哪些关于财务会计的陈述是正确的？（）
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影响产业结构的主要因素（）。
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房屋租赁合同产生效力是在（）。