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【单选题】
下列关于胶体的说法不正确的是A.
可用渗析法提纯胶体
B.
胶体、溶液和浊液这三种分散系的根本区别是分散质粒子直径的大小
C.
胶体微粒不能透过滤纸
D.
往25 mL沸水中逐滴加入2 mL FeCl 3 饱和溶液，可以制得Fe(OH) 3 胶体
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举一反三
【单选题】执行语句序列 int n;cin >> n; switch(n--) { case 1: case 2: cout << '1' ; case 3: case 4: cout << '2' ; break; default: cout << '3' ;时，若键盘输入1，则屏幕显示（ ）。
A.
1
B.
2
C.
12
D.
3
【单选题】Which technique is used to reinforce walls?
A.
Cross-bracing
B.
Shear cores
C.
Bolting
D.
Base isolators
【单选题】which technique is a basic tool used extensively in tasks such as zooming, shrinking, rotating, and geometric corrections.
A.
watermark
B.
segmentation
C.
Interpolation
D.
restoration
【判断题】The picture response technique is a projective technique in which the respondent is shown a picture and asked to tell a story describing it.
A.
正确
B.
错误
【单选题】执行语句序列 int n; cin >> n; switch(n) { case 1: case 2: cout << '1' ; case 3: case 4: cout << '2' ; break; default: cout << '3' ; } 时,若键盘输入1,则屏幕显示( )
A.
1
B.
3
C.
2
D.
12
【单选题】Which technique is used to resolve the different sizes of DNA fragments following a restriction enzyme digest
A.
DNA sequencing
B.
Gel electrophoresis
C.
Gene cloning
D.
PCR
【单选题】执行语句序列 int n; cin >> n; switch(n) { case 1: case 2: cout < case 3: case 4: cout < default: cout < } 时,若键盘输入1,则屏幕显示( )
A.
1
B.
2
C.
3
D.
4
【单选题】Which technique is not characteristic of Ding's Tuina?
A.
rolling manipulation
B.
Yizhi Zen Yizhi Zen YiZhi Zen
C.
Shiatsu
D.
Push manipulation
【单选题】According to the passage, which technique is NOT used by advertisers to get our attention?
A.
A product may be filmed or photographed to make it appear better.
B.
A product may be presented as 'unique', 'supreme'.
C.
A product may claim to he 'new' or 'improved'.
D.
A product may be sold at a discount.
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