【判断题】【消耗次数：1】
栽培蔬菜与野生菜相比，形态变异多样性。
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【判断题】
生态系统是生物与环境构成的统一的整体，生态系统的多样性包括生物种类的多样性和生活环境的多样性，因此，生态系统的多样性受到影响时，会影响生物种类的多样性和基因的多样性基因的多样性
①
正确
②
错误
【多选题】
下列有关生物多样性的描述，错误的是（）。
①
A.大量排放CO2导致全球变暖和普降酸雨是导致生物多样性下降的主要原因
②
B.生物多样性包括遗传多样性、个体多样性、物种多样性和生态系统多样性几个层次
③
C.全球生物多样性快速下降是人类所面临的又一全球性环境问题
④
D.生物多样性的保护对于保持生态平衡和生态系统稳定性意义重大
⑤
E.引进外来物种不会对自然界生物多样性造成根本影响
【单选题】
关于生物多样性及其保护的叙述，正确的是（）。
①
A.地球上所有的动、植物、微生物及他们拥有的全部基因共同组成生物多样性
②
B.保护生物多样性就是在物种和生态系统两个层次上采取保护措施
③
C.人为因素是生物多样性面临威胁的主要原因
④
D.生物多样性保护的最有效措施是加强教育和法制管理
随机题目
【单选题】
A: How about going to dinner at the Mexican restaurant tonight? B: [填空].
①
I like Mexican food
②
Id like to, but I already have plans for tonight
③
Forget it
④
I dont know
【单选题】
A: Bob, [填空]? B: Thats my friend! And beside him, his partner.
①
what is the person over there
②
whos talking over there
③
what are they doing
④
which is that
【单选题】
A: She is running a fever, but now it is under control. B: [填空].
①
She is running fast
②
Her mother does not run
③
She is running away from home
④
I will go and see her after work
【单选题】
A: I won the 100 metre race. B: [填空].
①
Best wishes
②
Good luck
③
Right
④
Congratulations
【单选题】
A: Sir, do all the buses go downtown?B: [填空].
①
No，never mind
②
Sorry，Im new here
③
Pretty well，I guess
④
Wow，you got the idea
【单选题】
A: Im going to ask for a pay rise. B: [填空]
①
I think you cant do it.
②
Let me pay for it
③
I think you may talk to your boss
④
I dont think you are worth.
【单选题】
A: Lets eat out, shall we? B: Im broke. Ive gone through my paycheck for the week already. A: Dont worry. [填空].
①
Lets split the bill
②
We can find a way
③
Its my treat
④
Just fast food
【单选题】
A: I go to the gym twice a week. B: [填空] You look really fit and healthy.
①
Thats right!
②
I can tell.
③
No way!
④
Poor you!
【单选题】
A: Could you put the books on bookshelves, please? B: Of course. [填空] A: Thats all. Everything else has been done.
①
Its a pleasure to help.
②
Is that all?
③
Im free now.
④
How should I do it?
【单选题】
A: Ive got a really bad cough. B: [填空]
①
Why are you so careless about yourself?
②
This kind of thing happens to everyone.
③
You should take good care of yourself.
④
Oh, thats too bad. Why dont you take some aspirin?