【单选题】选择题 What is the style of the text?
A.
“how to” expository writing ( 说明文 );
【简答题】The cylinder block of liquid-cooled engines forms the basic framework of the engine. Other parts are attached to the cylinder block or are assembled in it. The block is cast in one piece from gray iro...
【单选题】在WORD20 1 0中, 以下是模板文件的后缀名的 是( )
【单选题】The block is cast in one piece from ________ or iron alloyed with other metals, such as nickel or chromium.
【单选题】食品中铅含量用双硫腙比色法测定,溶液适宜的pH值是:
【多选题】多项选择题 1.或有负债披露包括( )。