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【判断题】

番茄的栽培品种按生长习性分为有限生长和无限生长两大类型。()

A.
正确
B.
错误
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】扶芳藤的生长习性是()

A.
喜温暖气候,不耐寒
B.
适应性较弱,喜阴湿环境
C.
不耐干旱瘠薄
D.
性耐阴,全日照或半日照均可

【单选题】Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm,whose parents may have provided food for the besieged Jews at Masa...

A.
the attempt to grow the Judean palm date will end in failure
B.
the effort to reintroduce the Judean palm date is sure to pay off
C.
the researchers are likely to create a new species of the Judean palm date
D.
the researchers stand a chance of success to renew the Judean palm date

【单选题】下列关于细胞不能无限生长的原因,不正确的是()

A.
细胞体积越大,物质运输效率相对越低
B.
细胞体积越大,其相对表面积越大,物质运输效率相对越低
C.
细胞表面积与体积的关系限制了细胞长大
D.
细胞核控制细胞的范围是有一定限度的