【判断题】If a country can make something better or more cheaply than it can others, it has an absolute advantage()
【单选题】According to the text, 'no country can afford to throw in the towel' probably means ______.
A.
No country can admit to be defeated by Australia.
B.
No country has the resources to beat Australia.
C.
No country can imitate Australia's outdoor image.
D.
No country has the same advantages with Australia.
【简答题】选区激光熔化成型工艺流程的最后工序是 。
【单选题】以下关于心肌纤维的描述,哪一项是错误的( )