题目

2. He has lived _____ for many years. That's why he can hardly speak his mother tongue now. A. in abroad              B. exotic                 C. foreign              D. Abroad 答案：D如图所示，△ABC中，点P，Q，R分别在AB，BC，CA边上，且AP=，BQ=BC，CR=CA，已知阴影△PQR的面积是19cm2，则△ABC的面积是A.38B.42.8C.45.6D.47.5