What _____ the students _____ ?
A. is; doing
B. does; do
C. are; doing
答案:C
He preferred to sit rather than __________
A.sleep
B.sleeping
C.sleeps
D.to sleeping
初孕妇,25岁,妊娠30周,未经产前检查,诉下肢水肿半个月,头痛3日,今晨出现视物不清及头痛加重,且呕吐2次,急诊来院,查尿蛋白2.5g/24h。
若眼底检查发现小动脉痉挛且有视网膜渗出,首选药物应为()
A.肼屈嗪
B.硝苯地平
C.拉贝洛尔
D.呋塞米
E.硫酸镁