A-A+
Pine trees of which them am almost one hundre
问题详情
Pine trees, of which them am almost one hundred ______, are found throughout the North Temperate Zone.
A．species
B．differences
C．similarities
D．standards
参考答案
正确答案：A
解析：species[生物]种(屑以下的分类法)；differences不同之处，不同点；similarities类似之处，相似点； standard标准，水准；句意：在整个北温带地区，大约可以找到100种松树。
