适用于黏土的土球包装，无论苗木大小均可使用的土球打包法是______。
A．扎草法
B．蒲包法
C．捆扎草绳法
D．木箱包装法
参考答案：C
在心理健康教育课程设计中，一般来说，每个小单元较为适宜的课时是( )。
A．1个 B．2个 C．3个 D．4个
A （） is a pre-contract agreement that formally establishes the intent of one party to buy products or services from another party and establishes some preliminary consideration in order to reserve resources for the anticipated contract．
A．seller initial response
B．memorandum of understanding
C．letter of intent
D．letter contract
