问题
单项选择题
唾液腺发育，唾液分泌逐渐增多，能产生较多淀粉酶的时间是()。
A．出生时
B．1个月
C．2个月
D．3～4个月
E．5～6个月
答案
参考答案：D
解析：[考点] 小儿消化系统解剖、生理特点[重点等级] ★★★★
搜题请搜索小程序“爱下问搜题”
唾液腺发育，唾液分泌逐渐增多，能产生较多淀粉酶的时间是()。
A．出生时
B．1个月
C．2个月
D．3～4个月
E．5～6个月
参考答案：D
解析：[考点] 小儿消化系统解剖、生理特点[重点等级] ★★★★
情景交际（从A---F选出合适的选项，共10分) Reporter-----R Michael------M R: __小题1:___ You just won the first prize in the photo competition. M: Thank you. R: Michael, how old are you? M: Seven. R: Seven!__ 小题2:___. M: Since I was three. R:__ 小题3:__ M: My father, And I take private lessons,too. R: Here at the photo club? M: Yes, I’ve taken lessons here for two years. R: How many days a week? M: __小题4:_____ I want to practice every day, but my parents say three or four days is enough. R: Are you going to continue your photos? M: Uh-huh. ___小题5:____ R: Wish you greater success!M: Thank you!
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