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
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Xi Jinping paid his first visit to ______ in March, 2013.
#17089
A
South Africa
B
Russia
C
Tanzania
D
The Repulic of Congo
- Mrs Smith, please teach me how to draw on the computer today. - Oh, no. ______. You have to get familiar with the keyboard today.
#38833
A
Each dog has its day
B
Never too late to learn
C
Early birds catch worms
D
Learn to walk before you run
—What       the weather       today?—It’s cold.
#17230
A
it; /
B
is; like
C
does; like
D
can; be
________表示“联合国” 
#17227
A
UN
B
RMB
C
CCTV
D
UK