用烤瓷炉烧烤烤瓷牙的温度范围是 ()
A.100~200℃
B.300~499℃
C.500~860℃
D.871~1260℃
E.2000~2500℃
参考答案:D
– Have you decided how to spend your next day off?
– Not yet. We ________ join the school volunteer project.
A. may B. should C. must
患者男性,31岁,婚后3年,性生活正常,因不育就诊。PE:第二性征正常,阴茎(-),双侧睾丸16ml,左侧精索增粗,可扪及扩张静脉,右侧精索正常,其他检查(-)。首先采取的治疗为()
A.药物治疗
B.精索内静脉高位结扎
C.继续观察
D.内分泌治疗
E.辅助生育技术