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【简答题】
补全对话, 每空一词。 A: Hello! May I ask you some questions? B: Sure. A: What's your name, please? B: Thomas Ruzic. A: You speak English well. How long 1._____ you 2._____ studying English? B: For three years. A: Oh. Have you 3._____ been to 4._____ English-speaking country? B: Yes, I have. I was an exchange student in the United States 5 three months. A: Really? When was that? B: When I 6._____ thirteen. A: 7 do you want to improve your English? B: I want to 8._____ around the world, and I need English to do that.
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皮皮学刷刷变学霸
举一反三
【单选题】关于重铬酸钾容量法测定有机质的操作步骤，叙述不正确的是（ ）
A.
称 20 目筛子的土壤样品 0.2150g 作用
B.
加入重铬酸钾 - 硫酸溶液 10.00ml ，油浴沸腾 5min
C.
洗涤转移到 250 ml 三角瓶至体积 70 ml
D.
加入指示剂后用硫酸亚铁滴定
【简答题】 We don’t eat vegetable just because we like them but also because they contain special substances called vitamins which are good for use and very important if we are to be healthy.
【单选题】— do you eat vegetable? —Every day. [ ]
A.
How long
B.
How often
C.
How many times
D.
How much
【单选题】红树林海岸,是由生长在热带、亚热带地区海边的一种海生植物——红树组成的丛林海岸。红树林生长和繁殖的最好条件是:海水的温度比较高,水温一般不能低于()海水的温度变化幅度也不能太大;在海岸附近有细粒物质(如淤泥和细砂)分布的地方,像淤泥质海岸和大河口的河口附近;波浪对海岸的作用不太强的地方,因为波浪冲蚀作用太强不利于红树幼苗的扎根、生长和繁殖;在潮差比较大的海岸,很适合于红树林的生长和繁殖。
A.
17~19℃
B.
20~23℃
C.
18~20℃
D.
21~22℃
【简答题】Nowadays, more and more women eat vegetable ( ) to keep slim.
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