【判断题】【消耗次数：1】
群体内遗传改良的主要方法有混合选择法、改良穗行法、半同胞轮回选择和全同胞轮回选择
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【单选题】
对于prompt（）方法描述错误的有：( )（选择一项）
①
该方法执行时会弹出一个提示对话框，等待用户输入一行数据
②
基本语法是:prompt(提示信息，“输入框的默认信息”);
③
该方法的返回值可以被引用或存储到变量中。
④
如果用户单击“取消”按钮或直接关闭提示对话框，该方法将返回false
【判断题】
答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”He is proud to fight for justice and freedom.
①
正确
②
错误
【判断题】
答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”This question is more difficult than that one.
①
正确
②
错误
【判断题】
答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”Mary is one of the best student in that class.
①
正确
②
错误
随机题目
【单选题】
They couldn’t ______ to fly out to see us, and we couldnt either. We were all poor then.
①
offer
②
afford
③
provide
④
supply
【单选题】
Youve got a divorce? Why did he decide to______ you after seven years together?
①
keep company with
②
part company with
③
keep in touch with
④
stay in touch with
【单选题】
—How many poor counties will there be in our province by 2020?—There will be only a few, if _______.
①
much
②
some
③
any
④
many
【单选题】
Henry was very busy yesterday．Otherwise he______ to our my birthday party.
①
would have come
②
came
③
had come
④
will come
【单选题】
Our parents were strict. They requested that we______ television on week nights.
①
have not watched
②
not be watching
③
must not to watch
④
not watch
【单选题】
---Why didn’t John call me ? ---Oh, his cell-phone ran out of power, otherwise he______ you.
①
had called
②
would have called
③
called
④
would call
【单选题】
If you take quality into consideration, you will find our price______.
①
changeable
②
readable
③
comfortable
④
reasonable
【单选题】
Thank you for your time. I’m looking forward to ______.
①
you reply
②
your reply
③
you answer
④
you to answer
【单选题】
The manager______ at 8:30 AM for the meeting, but he didnt show up.
①
ought to arrive
②
should have arrived
③
should arrive
④
was supposed to arrived