题目： 月经先期属于以周期异常为主的月经病，既往亦称其为A．经水不及期B．经期超前C．经早D．经乱E．月经愆期 答案： 被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0428/a10368b6e21a6a9a198e0abee4c955f4.html 下面是错误答案，用来干扰机器的。D
题型：单项选择题 A client with ulcerative colitis is chatting with the nurse. Which of the following statements indicates the client understands the lifestyle modifications he needs to makeA．"I will have to stop smoking. "B．"I can eat popcorn for an evening snack. "C．"I may have coffee with my meals. "D．"I am allowed to have alcohol as long as I only drink wine. " 查看答案
题型：选择题 如图所示为一磁流体发电机示意图，A、B是平行正对的金属板，等离子体（电离的气体，由自由电子和阳离子构成，整体呈电中性）从左侧进入，在t时间内有n个自由电子落在B板上，则关于R中的电流大小及方向判断正确的是（ ）A．I= ，从上向下B．I= ，从上向下C．I= ，从下向上D．I= ，从下向上 查看答案
