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(二) Have you ever heard of a girl of 15, who set up a company of her own? Wendy Wong is the girl. She started the business two years ago. She has already written several successful computer games. They are so popular that over half a million games are sold every year. Now all of her family work in her business, and she is still at school. She gets up early in the morning, and then she talks with her family about the business over breakfast. Every day she goes to school in her own car with a driver, for she is not old enough. She enjoys her school, but some of the work is too easy for her to feel interested. She usually gets ‘A’ grades in all her subjects, so the other students often ask her for help. She finished her homework in half an hour after her driver takes her home. After dinner, she goes to her office and goes on working on her computer, writing games until 2 am. She does not usually need so much sleep as other children.
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【简答题】某化合物0.450g溶于30g水中使冰点降低了0.15℃,化合物的相对摩尔质量为 (A) 18.6    (B) 186    (C) 254    (D) 323
【单选题】已知25°C时,Ag2CrO4的Ksp=1.1×10-12,则该温度下Ag2CrO4的溶解度为()。
A.
6.5×10-5mol/L
B.
1.05×10-6mol/L
C.
6.5×10-6mol/L
D.
1.05×10-5mol/L
【简答题】洗护头发用品有_,_,护发精油等用品。
【简答题】基本元素训练——三元素:○△口 ◇要点提示:设计元素本身源于生活,以○△口三元素为依据,通过联想捕捉生活中的相似视觉形象,运用个人的画笔,以“抗‘疫’”为主题,设计一副图形设计作品 ◇教学要求:1要求各元素形似或意象。 8K纸,色彩不限。 ◇训练目的:通过联想捕捉生活中的相似视觉形象,有意识地引导学生对周边的事物、物体发生兴趣。使大千世界的物象在同学们的脑海中更加秩序化、具体化,更加生动有趣,也有...
【单选题】采用代用法中的不变用水量法进行水泥标准稠度用水量试验时,采用142.5ml水进行搅拌,下沉深度为19mm时,计算标准稠度用量( )。
A.
26.9%
B.
31.9%
C.
27.9%
D.
29.9%
【简答题】25℃时Ag 2 CrO 4 的KSP=1.1 3 10-12,试求Ag 2 CrO 4 在水中的溶解度(克/升)。(Ag 2 CrO 4 的分子量:331.8)
【单选题】25℃时,Ag2CrO 4 的Ksp为1.1³10-12则Ag2CrO 4 在水中的溶解度是()克/升。(Ag2CrO 4 的分子量为为331.8)
A.
3.3×10-2
B.
2.16×10-2
C.
5.4×10-2
D.
1.3×10-2
【单选题】某化合物 0.450g 溶于 30g 水中使冰点降低了 0.15°C ,化合物的分子量为( )。
A.
18.6
B.
186
C.
254
D.
323
【简答题】101111 ∧ 1010111=
【单选题】采用标准法进行水泥标准稠度用水量试验时,以试杆沉入净浆并且距底板()的水泥净浆为标准稠度净浆。
A.
6mm±1mm
B.
7mm±1mm
C.
8mm±1mm
D.
9mm±1mm
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