阅读下列图片,回答问题
观察上述四副图片,请把它们分成两类,并指出这两类图片内容分别承载了什么文化?
参考答案:
图一和图三一类,图二和图四一类。佛教文化,古希腊文化。
When _____ how her husband was injured, the woman began to cry. [ ]
A. asked
B. to ask
C. asking
D. ask
上运胶带输送机巷道倾角大于()时,必须装设防止煤块下滚下滑的防护设施。