题型:选择题 —It has been nation-widely required that every student ______ have daily exercise for one hour.—Yeah.It is high time that we ______ special attention to physical exercise.A.must;should pay B.should;paidC.will;shall pay D.need;pay 查看答案
题型:单项选择题 胸部外科最重要的术前准备是()A.作好病人思想工作,减轻病人畏惧心理B.作好血、尿、粪三大常规和出凝血时间检查C.作好呼吸道的准备工作D.备皮和改善全身情况的支持疗法E.作好心肺、肝、肾等重要脏器的检查,了解其功能情况 查看答案