题目内容

染色体重复可带来基因的（）。

A. 剂量效应
B. 互作效应
C. 突变
D. 重组

查看答案

搜索结果不匹配？点我反馈

更多问题

Staff: Mr.Lee. This is your pre-meal fruits. Please enjoy. This is your abalone broth. This is your soy sauce will chili and this is Sacha sauce.Excuce me. Mr. Lee. _______ Clockwise is turn down. Be careful. It's hot.Excuse me. This is your shrimps, and this is Chinese leaf lettuce._. You can boil your food now.Would you like some more coconut milk?Guest: No, thanks.Staff: My pleasure. All dishes have been served._Guest: No, many thanks.Staff: _.Excuse me, may I change another plate for you?Guest: Oh. Thanks.Staff: Excuse me. May I refill the broth.Guest: Ok.A. Is there anything else I can do for you?B.You can use thiw button to control the fire.C.Your broth is ready, please enjoy.D. My pleasure. Please enjoy.

一个句型中称为句柄的是该句型的最左（）

A. 非终结符号
B. 短语
C. 句子
D. 直接短语

对应Chomsky四种文法的四种语言之间的关系是（）。

A. L0ÌL1ÌL2ÌL3
B. L3ÌL2ÌL1ÌL0
C. L3=L2ÌL1ÌL0
D. L0ÌL1ÌL2=L3

一个上下文无关文法G包括四个组成部分：一组终结符，一组非终结符，一个（），以及一组规则。

A. 字符串
B. 产生式
C. 开始符号
D. 文法