被古代中国尊为五谷之首的是()。
A. 粟
B. 黍
C. 稷
D. 梁
只要()辣椒就可以满足人一天对维生素C的需求。
A. 30克
B. 50克
C. 70克
D. 90克
Language may be _________ to our own species, the capacity of mean, to transmit messa
A. effective
B. unique
C. relative
D. misunderstanding
I’m afraid we shouldn’t go on chatting like this. The new manager could arrive out of
A. What does out of blue mean？
B. with an angry expression
C. extremely pleased
D. thinking deeply
E. unexpectedly; without warning
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