【单选题】有关上消化道大出血的说法,正确的是
B.
上消化道大出血的临床表临现取决于出血的速度和部位
C.
一次性出血量800ml,占循环量的20%,可出现休克
【单选题】According to Dr. Getsy, most people who complain of trouble in sleeping are those who
A.
have the disease of chronic insomnia.
B.
don't know the importance of sleep.
C.
exercise less and eat more.
D.
always stay awake in bed.
【简答题】试述消化性溃疡并发上消化道大出血的止血措施。
【单选题】My teacher takes great trouble ______me learn English, since I have a lot of trouble _____it. [ ]
【单选题】If they ______ what I was saying, they’d know what I was talking about.
A.
took the trouble to listen to
B.
had trouble listening to
C.
take the trouble to listen to
D.
have trouble listening to
【单选题】在沉降作用明显的河流充分混合段,对排入河流的化学需氧量(COD)进行水质预测最适宜釆用()。