可引起Ⅰ型呼吸衰竭的是（）
A.急性间质性肺炎
B.结节病Ⅰ期
C.原发综合征
D.重症肌无力
E.纵隔淋巴瘤
参考答案：A
With the development of science, more new technology _______ to the fields of IT. [ ]
A. has introduced
B. was introduced
C. is introduced
D. is being introduced
反映心脏健康程度最好的指标是
A．每分输出量B．心指数C．射血分数D．心脏作功E．心力贮备
