突变率10-10表示()。
参考答案:1010个细胞分裂成2×1010个细胞时,平均发生1次突变。
阅读短文,判断正(T)误(F)。
Where would you like to go during your holiday (假期)? Many people like to go to Japan (日本). This
month about 10,000 Chinese go on trips to Japan. Why do Chinese like going on trips to Japan? Because
the trips to the country are cheaper. Japan's many scenic spots lie near. (日本大部分风景区很集中) They
can go to a lot of scenic spots in a short time. And some Chinese like Japanese food. They say,"Japanese
food is more delicious than Western food." Some people say, there are many Chinese Words in Japanese.
It is easier on trips to Japan.
( ) 1. All Chinese like to go to Japan because they don't need much money to go there.
( ) 2. Japanese say Japanese food is more delicious than Western food.
( ) 3. It is easier for some Chinese to travel (旅行) in Japan because there are many Chinese words in
Japanese.
确保经济安全一直是我国吸引外资最关注的问题,我们要增强与外资企业并购时的话语权,维护经济安全。为此我们要()①保护民族品牌,坚决反对外资并购②在并购合同中设置相应限制条款,增强 * * 意识③要充分利用世贸组织的规则和赋予的权利,增强安全和防范意识④吸引外资,接受外资企业并购的一切条件
A.①②
B.③④
C.②④
D.②③