男性,35岁,因低热、乏力和呼吸极度困难来门诊。医生怀疑心脏压塞。协助诊断最有意义的是
A.颈静脉怒张
B.心界扩大
C.心动过速
D.深呼气后测血压
E.深吸气后测血压
参考答案:E
学校买回50盏日光灯,每个教室安装6盏,可以安几个教室?还剩下多少盏?
It is only people know the importance of science science can really serve the people.
A.that; when
B.when; that
C.then; that
D.that; then