在植物水分运输中,占主要地位的运输动力是()
A、根压
B、蒸腾拉力
C、渗透作用
参考答案:B
I hear they’ve promoted Tom, but he didn’t mention _____ when we talked on the phone.
A.to promote
B.having been promoted
C.having promoted
D.to be promoted
孕妇,28岁,足月妊娠,子痫前期。腹痛6小时。入院检查:血压血压60/40mmHg,心率130次/分,板状腹, * * 持续少量流血,皮肤有瘀斑,胎心消失。此时应考虑病变为()
A.Ⅰ度胎盘早剥
B.Ⅱ度胎盘早剥
C.胎盘早剥Ⅲa
D.胎盘早剥Ⅲb
E.子宫破裂