【单选题】________ are represented by phonetic symbols because there is no one-to-one correspondence between written letters and spoken sounds.
【单选题】下列关于DNA超螺旋哪一个是错误的()
C.
细胞中所有天然存在的DNA超螺旋均是正超螺旋
【单选题】Public speakers often confuse their audience because their visual signals do not correspond with the verbal.
【单选题】下列关于DNA超螺旋的叙述哪一个是错误的?
A.
在外加张力作用下,双螺旋 DNA 形成超螺旋
C.
细胞中所有天然存在的 DNA 超螺旋均是正超螺旋
【多选题】评标中的技术评审主要是对( )等进行评审。
【单选题】His father often ______ him to do what he really likes.
【判断题】大隐静脉起于足背静脉弓内侧端,最终汇入股静脉,主要收集足、小腿的静脉血。( )
【单选题】He wrote a book about computer in_______ with one of his colleagues.