电热温床实际布线间距可根据苗床中温度分布状况作适当调整,一般中间密一些,两边稀一些。()
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在地膜覆盖压膜时,要压严、压实,防止透风。()
A. 对
B. 错
简述在设施生产过程中,改善设施土壤气体环境的措施。
Listen to the conversation and decide whether the following statements are true or false. Then write key words to support your answers.1. The man is going to have a job interview in the woman's company.
A. 对
B. 错