【简答题】Why could only a limited number of people travel in the past?
【单选题】In this park,the number of visitors is strictly _____ to avoid damaging the environment. [ ]
【单选题】下列关于森林火灾特点描述不正确的是( )。
A.
在森林开放性的生态系统中的自由燃烧,不受氧气的限制。
D.
林火对森林生态系统的影响具有两重性,既有毁灭作用,也有促进作用。
【单选题】下列关于随机森林模型的描述不正确的是
C.
随机森林解决预测问题使用的是平均值法来去处理预测结果
【单选题】The increase of the number of the students makes the limited computers not ______ to each student.
【单选题】The number of the stamps _____ limited, so a number of people _____ to have a look at them.
【单选题】A limited partnership has
A.
only one general partner.
B.
only limited number of partners.
C.
at least one or more unlimited partners and is a subtype of partnership.
D.
different subtypes, including a general partnership, a limited partnership and an unlimited partnership.