最常见且致命的高原病是()
A.高原心脏病
B.高原脑水肿
C.急性高原反应
D.高原肺水肿
E.慢性高原反应
参考答案:D
We had our bad times but on the whole we are ____ happy with our life.
A.merely
B.rarely
C.fairly
D.chiefly
平遥古城是现存完好的明代县城的建筑实物资料。( )