母线涂色规定:A相()色,B相()色,C相()色,直流正极()色,直流负极()色。
参考答案:黄,绿,红,赭色,蓝色
What _______ great fun it is to play ______ game of basketball after a whole day of study!
A.a; a
B.a; the
C./; a
D./; the
男,11岁。摔倒后左手着地受伤,左腕部疼痛、畸形,肘后三角正常,且伴有桡动脉消失、手部感觉麻木。X线示肱骨远端骨折。最可能损伤的血管是()
A.尺动脉
B.桡动脉
C.腋动脉
D.肱动脉
E.锁骨下动脉