将分式方程 $1-\frac{2x}{x-1}=\frac{3}{x-1}$ 去分母,得到正确的整式方程是(     )

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Ⅰ.茶叶中铝、铁元素对钙离子的测定有影响，所以要预先除去．

Ⅱ.溶液中铝离子、铁离子完全转化为氢氧化物沉淀的pH在6左右，加热有利于沉淀聚沉．

Ⅲ.茶叶中丰富的有机物来自于植物进行了光合作用．

①称取100g干燥的茶叶，充分灼烧使茶叶灰化，再用研钵磨细后移入烧杯中，然后加入一定量稀盐酸，搅拌、过滤、洗涤．

②向步骤①所得滤液中逐滴加入稀氢氧化钠溶液，调节溶液的pH为6～7左右，再加热煮沸30min，过滤后得到滤液和沉淀．

③向步骤②所得的滤液中加入足量无水碳酸钠，充分搅拌，待充分反应后，过滤、洗涤，得到滤液和沉淀．

请回答下列问题：

为了解家庭用电情况，小明在七月初的连续几天同一时刻观察电表并记录如下：请估计小明家七月份总用电量为____ 度．

Waiter: Can I help you?

Clark: Yes,____

Waiter: Would you like salad?____

Clark: OK! A vegetable salad, too.

Waiter: What fruit do you want, oranges or bananas?

Clark:____I like strawberries.

Waiter: Let me see.____

Clark: And I like a chocolate ice cream as my dessert.

Waiter: Anything else?

Clark: No, that's all.

Waiter: OK.____

A. I'll bring them soon.

B. I don't like bananas or oranges.

C. Sorry, we don't.

D. Yes, we have strawberries.

E. Our vegetable salad is very good.

F. Welcome to our shop.

G. I would like some chicken.