关于甲状腺峡位于
A. 喉咽的前方
B. 舌骨的前方
C. 第2~4颈椎前方
D. 第2~4气管软骨环前方
E. 甲状软骨前方
关于甲状旁腺的方法正确的是
A. 通常为一对扁椭圆形小体
B. 贴附于甲状腺侧叶后面
C. 约黄豆大小，呈淡红色
D. 幼儿时期体积较小
E. 功能亢进时常引起血钙下降
in America, employer can just fire you without good reason regardless of legal protections.
A. 对
B. 错
Which statements about coffee break are ture?
A. Nearly all offices have mid-morning and mid-afternoon coffee breaks.
B. 15 minutes are allowed twice a day for relaxation and chatter.
C. many employees take coffee to their desks and keep on working
D. Some employees do some physical exercises during the coffee break.
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