Mummy, can you pick me _______ after school?
A.out
B.up
C.at
D.off
答案:B
固定搭配pick sb up 开车接某人;
心动周期中哪个时期主动脉压最低
A.等容收缩期末
B.等容舒张期末
C.心房收缩期末
D.快速充盈期末
E.减慢充盈期末
家畜临床表现中度或剧烈腹痛,呼吸迫促,胃排空障碍,插入胃导管,有大量气体、液体或食糜排出,病程短急,该病是()
A.急性胃扩张
B.急性瘤胃臌气
C.急性肠积食
D.急性肠炎
E.急性十二指肠炎