A.coarse
B.rude
C.crude
D.rough
第1题:
He's worked here _______ 4 o'clock this afternoon.
Afor
Bat
Csince
Dabout
第2题:
第3题:
10、下列各组分子或离子中,均呈顺磁性的是()
A.B2、O22-
B.He2+、B2
C.N22+、O2
D.He2+、F2
第4题:
17.
A. He’s
B. His
C. He
D. Him
第5题:
快速数字转换(英到中): 1 thousand, 10 thousand, 100 thousand, 1 million, 10 million, 100 million, 1 billion, 10 billion, 100 billion, 1 trillion