生活在恒河三角洲以捕鱼为生的人是[ ]
A、印度人
B、孟加拉人
C、阿拉伯人
D、贝都因人
答案：B
—After reading the story about Jin Jing, I was very _____.
—_____. She's really brave. [ ]
A. relaxed; So was I
B. impressing; So did I
C. impressed; So was I
D. relaxing; So I did
铣削奇数齿矩形牙嵌离合器时若齿数Z=7，则铣削齿1两侧时，可同时铣出（）齿的侧面。
A.4、5
B.5、6
C.6、7
