【多选题】患者女性,32岁。已育二胎,最小3岁,带环妊娠,取环+人工流产术后,要求输卵管结扎。关于输卵管,下列哪些项是正确的()
【单选题】电气工作人员在电压等级小于等于 10KV 的设备上进行工作时,正常活动范围的距离小于( ) m 安全距离时必须停电。
【单选题】母禽输卵管中最长,弯曲最多,分泌物形成浓稠白蛋白的部位是
【单选题】The United States of America ( USA ), commonly known as the United States ( U.S. ) or America , is a constitutional federal republic composed of ____ states , ____ federal district , five major self-g...
【单选题】宿舍楼屋面荷载中,属于可变荷载的是( )。
【单选题】Which of the following statements is NOT a power of the president in the USA?
A.
The president can veto any bill passed by Congress.
B.
The president has the authority to appoint federal judges when vaccines occur.
C.
The president can dismiss the Congress at will without any cause.
D.
The president has broad powers, with the executive branch, to issue regulations and directives.
【单选题】鸡蛋在输卵管中停留时间最长的部位是( )。