与骨折移位的程度和方向最有关的因素是()。
A.年龄
B.所从事的职业
C.暴力的大小和方向
D.外伤后的搬运
E.未及时治疗
参考答案:C
He _____ some French while he was away on a business trip in Paris.[ ]
A. made out
B. picked up
C. gave up
D. took in
发电机失磁会使系统()。
A.电压降低
B.其它发电机组无功出力降低
C.频率降低
D.其它发电机组有功出力降低