【判断题】蔬菜腌渍的原理主要是利用食盐的高渗透作用,微生物的发酵作用,蛋白质的分解作用以及其他一系列的生物化学作用,抑制有害微生物的活动和增加产品的色香味。
【单选题】-----How good the news is for you! ------ ______________.
A.
It's kind of you to say so .
B.
You are friendly to tell me
C.
I'm glad to see that .
D.
It's nice to hear from you
【单选题】 下列说法中,错误的是( )。
C.
src 指 "source"。源属性的值是图像的 URL 地址
D.
alt 属性用来为图像定义一串预备的可替换的文本
【简答题】To be a good teacher, you need some of the gifts of a good actor; you must be able to hold the attention and interest of your audience; you must be a clear speaker, with a good, strong, pleasant voice...
【简答题】To be a good teacher, you need so me of the gifts of a good actor; you must be able to hold the attention and interest of your audience; you must be a clear speaker, with a good, strong, pleasing voic...
【多选题】 3.关于中性轴,下列说法错误的是()