You hear a man talking to a group of people who are going on an expedition into the rainforest. What does he advise them against? ......
A.sleeping in places where insects are found.
B.using substances which attract insects.
C.bathing in areas where insects are common.
第4题
以下疾病是由珠蛋白合成障碍所致的是
A、遗传性球形细胞增多症
B、血红蛋白H病
C、遗传性棘形细胞增多症
D、自身免疫性溶血性贫血
E、再生障碍性贫血
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