遗传性乳光牙本质的特点是A．常染色体显性遗传 B．致病基因初步

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问题单项选择题

遗传性乳光牙本质的特点是

A．常染色体显性遗传

B．致病基因初步定位于3号染色体

C．致病基因可能是牙本质基质蛋白

D．DSPP基因产物同时参与牙釉质和牙本质发育

E．家族连续遗传

答案

参考答案：A

补全对话，情景问答

补全对话。

A: Hello, may I speak 1_____ Lili?

B: Sorry, Lili isn't 2_____. Is that you, Beibei?

A: Yes, Beibei is speaking. Who's 3_____, please?

B: 4_____ is Lili's mother. Lili told me you would come to help her 5_____ her English.

A: Yes, but I can't do that this evening.

B: 6_____ not?

A: My aunt will arrive this evening. I'll have to 7_____ her at the airport.

B: I'm 8_____ to hear that.

A: Can you pass a message 9_____ Lili?

B: Yes, of 10_____.

A: Thank you. Goodbye!

B: Bye-bye!

单项选择题

质地疏松的全草类药材用

A．洗法

B．淋法

C．漂法

D．润法

E．泡法