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The correct symbol of “ therefore” is________.
#17215
A
∵
B
∴
C
﹤
D
﹥
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无论处于何处都须大写的字母是_________.
#16868
A
I
B
B
C
CT
D
X
 Which sign can you mostly see in the school library?
#16718
A
B
C
D
下面的四组字母中不含有相同的元音音素的是（   ）
#17231
A
b, t, c
B
s, l, n
C
q, u, w
D
a, k, f
__runs the fastest in the world.
#17091
A
The cheetah
B
The white shark
C
The tiger
D
The manatee
In English-speaking countries, ____is unlucky number while ____is unlucky number in China.
#17087
A
14;4
B
13;4
C
11;4
D
13;0