在螺杆上安装两个螺母,先装的叫(),后装的叫副螺母.
参考答案:主螺母
He’d rather stay at home, ___ he?
A.didn't
B.wouldn't
C.hadn't
D.both B and C
临终患者享有()。
A.平等医疗权
B.知情同意权
C.获得医疗信息权
D.免除一定社会责任权
E.要求隐私保密权