问题
问答题 简答题
鱼类催产剂的使用剂量是由什么决定?
答案
参考答案:
剂量要依催产剂和亲鱼的种类以及催产季节、水温、亲鱼成熟度的不同,灵活掌握。催产早期或晚期、水温低、亲鱼成熟度差、个体小的情况下,剂量可以稍微偏高;反之,则应低些。
鱼类催产剂的使用剂量是由什么决定?
参考答案:
剂量要依催产剂和亲鱼的种类以及催产季节、水温、亲鱼成熟度的不同,灵活掌握。催产早期或晚期、水温低、亲鱼成熟度差、个体小的情况下,剂量可以稍微偏高;反之,则应低些。
根据对话内容, 从方框内所给的选项中选出最佳选项, 将其答案的序号写在方框下面的横线上, 选项中有两项为多余项。 W: Sorry, I can’t. (1) ____ M: Are you having an exam tomorrow? W: Yes. (2) ____ M: I wish you good luck. W: Thanks. But I am a little afraid. M: Afraid? (3) ____ W: But I haven’t worked hard in the past few days. M :(4) ____ W:Oh, I like my English teacher, Sue, best. She teaches history and she always makes the lessons interesting. M: Do all the students like history? W :(5) ____ My friend Tom hates it, because we have lots of homework every Monday and every Wednesday we have a test.
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