使肩关节外展的肌是
A．背阔肌和胸大肌
B．三角肌和冈上肌
C．冈上肌和小圆肌
D．大圆肌和肩胛下肌
E．冈下肌和小圆肌
参考答案：B
Faced with a bill for $10,000, _____.
A．Smith has taken an extra job
B．the boss has given Smith an extra job
C．an extra job has been taken
D．an extra job has been given to Smith
不含电解质的高渗液是
A．5%葡萄糖液B．5%葡萄糖等渗盐水C．10%葡萄糖液D．林格溶液E．生理盐水
