问题
多项选择题
影响化学性上呼吸道职业病发病的因素包括()。
A.化学物质的溶解性
B.化学物质的比重
C.化学物质的浓度
D.原有的上呼吸道疾病
E.个人的卫生习惯
答案
参考答案:A, C, D, E
影响化学性上呼吸道职业病发病的因素包括()。
A.化学物质的溶解性
B.化学物质的比重
C.化学物质的浓度
D.原有的上呼吸道疾病
E.个人的卫生习惯
参考答案:A, C, D, E
完形填空。 | ||||
It is __1__ day of school. Li Ping wants to __2__. He wants to see his friends. He wants to meet his new teachers. He __3__ early in the morning. He washes and eats his breakfast. Then he__4__his bike to school. He sees his friends in school. He __5__ them happily. Then the bell rings (铃声响了). Everyone __6__ the classroom. Li Ping meets his new teacher. __7__ is Zhao Ling. She teaches __8__ this term. Li Ping likes Miss Zhao. He thinks she is a nice teacher. | ||||
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