RRS指的是()。SCA指的是(),GCA指的是()。
参考答案:相互轮回选择;特殊配合力;一般配合力
After two hours of walking, they came to the camp site, _____. [ ]
A. hungry and tiredly
B. hungrily and tiredly
C. hungrily and tired
D. hungry and tired
急性肺淤血水肿时最典型的症状是()
A.呼吸困难
B.心悸
C.铁锈色痰
D.粉红色泡沫痰
E.胸痛