【判断题】PLC的输出方式按照电源可分为直流输出、交流输出和交直流输出三种。( )
【简答题】A main problem with culture is that it is subject to free trade and is no longer a ______.
【多选题】申论测试具有要求上的明确性,这主要是指()。
【判断题】Culture is a problem of nurture instead of nature, that is one’s cultural patterns are acquired through learning or interacting, or they are determined by the environment within which we live.
【简答题】旱生植物的另一类型,是所谓肉质植物,如马齿苋和芦荟,它们的共同特点是( )、( ),( )。
【判断题】Culture is a problem of nurture instead of nature. That means one’s cultural patterns are acquired through learning or interacting, or they are determined by the environment within which people live.
【判断题】Culture is a problem of nurture instead of nature, that is one’s cultural patterns are acquired through learning or interacting, or they are determined y the environment within which we live.
【单选题】谷类烹调对食品营养价值的影响不正确的是
A.
大米淘洗时水溶性维生素和无机盐会损失,营养素损失的程度与淘洗次数、浸泡时间和用水温度 密切相关。
B.
米饭在电饭煲中保温,随时间延长,VBI会损失增加
C.
制作油条时,因碱和高温作用,使VBI和尼克酸(烟酸)、维生素受到损失
【简答题】问答题 绝缘工具在储存、运输时有何要求?