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问题 选择题

       下列是农业活动的是：①在田地里种植庄稼；②在牧场饲养牲畜；③在海上撒网捕鱼；④在山上开山采矿；⑤在山野里植树造林；⑥把树木加工成家具[ ]

A、①②③④

B、②③④⑤

C、①②③⑤

D、①②④⑥

答案

答案：C

单项选择题

A 69-year-old client asks the nurse what the difference is between osteoarthritis (OA) and rheumatoid arthritis (RA). Which response is correct

A. OA is a noninflammatory joint disease. RA is characterized by inflamed, swollen joints.
B. OA and RA are very similar. OA affects the smaller joints, and RA affects the larger, weight-bearing joints.
C. OA affects joints on both sides of the body. RA is usually unilateral.
D. OA is more common in women. RA is more common in men.
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单项选择题

2006年7月1日，世界上海拔最高、线路最长的（）全线建成通车。

A、青藏铁路

B、京九铁路

C、兰新铁路
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