三尖瓣狭窄(TS)的病因中,()占所有TS的90%,但实发率很低
A.风心病
B.类癌
C.嗜酸粒细胞增多性心内膜炎
D.心梗
E.肿瘤
A.风心病
B.类癌
C.嗜酸粒细胞增多性心内膜炎
D.心梗
E.肿瘤
第3题
指出下列各组辅音的区别特征:
[p’]—[p];[p]—[b];[ts]—[ts’];[f]—[v];[t’]—[k’]。
第6题
若S和T均为正常算子,满足ST*=T*S和TS*=S*T,证明:S+T与ST也是正常算子。
第7题
A.脑卒中是我国城乡居民疾病死亡的首要死因
B.脑卒中患者中,出血性脑卒中占80%
C.25%~30%的脑卒中和颈动脉狭窄有密切关系
D.90%以上的颈动脉狭窄是由动脉粥样硬化所致
E.颈动脉粥样硬化狭窄与增龄有关,在老年人多见
第8题
Whats the central topic of the passage?
A.The recruiters and the interviewers.
B.Four don"ts when dealing with recruiters.
C.Don"t request special treatment.
D.Don"t ask for insider information.
第9题
A.744
B.746
C.992
D.1557
第10题
回答{TSE}题:
{TS}The first colonists returned to England mainly because
A. they were attacked by the Indians.
B. they didn’t have adequate supplies.
C. they had no passion for their new home at all.
D. they didn’t receive enough financial aid.