【简答题】RFID系统中防碰撞实现方法有以下四种:( )、( )、( )、( )。
【判断题】The company does not have servers.
【简答题】(Obvious) , the company does not seem to care much about its customer services.
【单选题】有关核酸的高级结构,以下说法不正确的是:
B.
H-DNA的核酸链中,只能有一条链全部由嘌呤核苷酸组成。
C.
负超螺旋的形成是由于DNA两条单链的盘旋方向与原来的右手螺旋方向相反,因而形成右手超螺旋。
D.
核小体的结构中,H 2 A、H 2 B、H 3 和H 4 各两分子形成组蛋白八聚体,并由H 1 加以锁定。
【简答题】A.The company does not have the man's resume. B.The man's first interview might be successful. C.The company has decided to hire the man. D.The woman is astonished to hear the news.
【单选题】The Company does not bet its own money on equities, and so is shielded from market risk.