关于呕血,下列叙述正确的是
A.最常见病因为消化性溃疡
B.出血前有上腹部不适、恶心
C.出血方式为呕出
D.出血前有喉部痒感、咳嗽等
E.血中混有食物残渣、胃液
A.最常见病因为消化性溃疡
B.出血前有上腹部不适、恶心
C.出血方式为呕出
D.出血前有喉部痒感、咳嗽等
E.血中混有食物残渣、胃液
第1题
Polly enjoys ()in a band in her free time.
A. play the guitar
B. to playing the guitar
C. playing the guitar
第3题
A.He played guitar poorly in high school.
B.He still plays guitar very often now.
C.He played guitar very well in high school.
D.He didn't like playing any music instrument.
第4题
A.Y
B.N
C.NG
第5题
Tom: You are playing guitar well. Can you read music?
Charles: No, I don’t. I just listen to songs on the radio and then play them until they sound right.
Tom: _____
Charles: No, really.
A. You’re lying.
B. You’re kidding.
C. You are boasting.
D. You’re cheating.
第6题
She__________be ill because I saw her playing tennis just now.
A'. can't B. couldn't
C. mustn't D. may not
第7题
第8题
A.You're lying .
B.You're cheating
C.You are boasting
D.You're kidding
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