肺外围有一圆形阴影,轮廓清楚,完整,直径3cm,中央有爆米花状钙化,其余肺野清晰,无自觉症状,首先考虑()
A.结核球
B.纤维瘤
C.错构瘤
D.血管瘤
E.肺癌
参考答案:C
After the long journey, the three of them went back home, ______ .
A.hungry and tiredly
B.hungry and tired
C.hungrily and tiredly
D.hungrily and tired
简述当前全球经济空间格局。