____she has been working in China for only two years, she speaks fluent Chinese.
A. When
B. If
C. Although
D. Until
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We have read this instruction many times and we are ______with all the steps we should take.
A. similar
B. useful
C. helpful
D. familiar
Turn to us for legal advice at any time _______ you need it.
A. when
B. how
C. where
D. why
古人认为天的三宝不包括()。
A. 日
B. 月
C. 星
D. 气
艾灸法能达到疏通经络,调和气血,防治疾病的作用。()
A. 对
B. 错