起挖大树时土球直径不小于树干胸径的10倍，土球纵径通常为横径的2／3。
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裸根根树木栽植常采用标杆式支架，即在树干旁打一杆桩，用绳索将树干缚扎在杆柱上，缚扎位置宜在树高1/3或2／3处，支架与树干间不需要衬垫软物。
A. 对
B. 错
主干较高的大树木定植时，栽植时应保持原来的生长方向。
A. 对
B. 错
一般要求苗木的原土痕与栽植穴地面齐平或略高。
A. 对
B. 错
Which one of the following statements is true according to the microcourse?
A. In traditional Chinese diet, the staple food is vegetables,supplemented byfive grainsand a small amount of meat.
B. In a Chinese banquet, people often sit together and share dishes, while westerners are used to eating separately.
C. Guangdong cuisine is characterized by its skillful cutting and sweetish flavors.
D. In northern China, people like dumplings made from wheat flour, whereas, noodles are the staple food of Southern people.
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