【简答题】投保单也称为( ),它是投保人向保险人表示要求进行保险意思的书面文件。
【判断题】植物生长物质是植物激素和植物生长调节剂的总称。
【单选题】We all went out _____ the lost boy, but after we had _____ everywhere, we didn't find him. [ ]
A.
searching for; searching
C.
in search of; searched
D.
in search for; searching
【单选题】We didn’t know how to find them because they didn’t tell us _______.
A.
which room did they live
B.
which room they lived in
D.
which room did they live in
【单选题】We didn’t have much difficulty _______ the company.
【简答题】植物生长物质是调节植物生长发育微量的化学物质。它可分为两类: 和植物 。
【单选题】What type of words is the suffix “-en” generally added to?
D.
Both “ Adjectives ” and “ Nouns ”.
【单选题】Which type of energy can NOT change to other types in humanbody?
【判断题】所有的植物激素都可以称为植物生长物质。( )