下列不属于A群链球菌致热外毒素的致病特点的是（）
A.致热作用
B.细胞毒作用
C.增加宿主对内毒素的敏感性
D.抗原性弱
E.产生皮肤红疹
参考答案：D
You have determined that you are in the right semicircle of a tropical cyclone in the Northern Hemisphere.What action should you take to avoid the storm（）.
A.Place the wind on the starboard quarter and hold that course
B.Place the wind on the port quarter and hold that course
C.Place the wind on the port bow and hold that course
D.Place the wind on the starboard bow and hold that course
