【简答题】句型转换 1. Tom went to the zoo four times last year.(对划线部分提问) Tom to the zoo last year? 2. Lily has eaten fish and chips.(改为否定句) Lily fish and chips. 3. Mr. Liu began to teach English in 2005.(用现在完成时改写句...
【单选题】下列说法正确的是( )
A.
决定西红柿品种下一代味道酸、甜的物质在细胞核中
B.
血液中的三种细胞只有白细胞才对人体有保护作用
C.
干制食品的防腐原理是杀死食品中的腐生细菌和真菌
D.
隐性基因所控制的性状虽然不会表现出来,但是仍然会遗传的
【单选题】装车积载时,以下一些原则哪一个表述有错误( )。
C.
装载卷状、简装货品,须横放或倒放,不能垂直摆放。
【单选题】生药的拉丁名通常由两部分组成,第一部分是来自动植物学名的词或词组,第二部分是 ( ) 的名称。
【单选题】— Do you know if Terry will go camping this weekend? — Terry? Never! She _____ tents and fresh air! [ ]
【简答题】When people talk about air pollution, they are usually thinking about outdoor air 1 . But do you know that there is 2 air pollution inside homes, offices, hotels and other buildings? The air in your h...
【简答题】Last year, five Chinese teachers _______ (send) to a school in the UK to teach the British students in Chinese style for four weeks.
【简答题】专利挖掘的创新思维方法( )、( )、( )和( )。