慢性肺源性心脏病最常见的病因是（）
A、慢性纤维空洞型肺结核B
肺心病绝大多数是 COPD所致，也见于支气管哮喘、支气管扩张、重症肺结核、尘肺
.IfyouhavereallybeenstudyingEnglishforsolong,it’sabouttimeyou_____abletowritelettersinEnglish.
Josephwasverylucky（）withhislife;healmostdidnotgetoutoftheroom.
Shehiredalawyertoinvestigate,onlytolearnthatGabrielhadremovedhernamefromthedeed.Theinfinitiveverbphrase“onlytolearn”isused____.
Iwastohavemadeaspeechif_____.
青年女性李××，平素体健，三日前突受惊吓，先心悸易惊，作卧不宁，少寐多梦，舌苔薄白，脉弦治疗宜选
