【多选题】根据太阳在星空背景中的运动规律,春天和秋天时太阳分别在()。
【判断题】EDI 的安全,一般是指防止由 EDI 系统交换的信息被丢失、泄露篡改,假冒 EDI 合法用户,提交或接受过程中出现的抵赖、否认以及 EDI 系统的拒绝服务。
【简答题】CPU从主存取出一条指令并执行该指令的时间叫做指令周期,它常用若干个_________来表示, 它与微指令的执行周期相对应,而后者又包含若干个时钟周期。
【单选题】采用平行结转分步法计算产品成本的决定性条件是
【单选题】What did we know about the single red ant I saw later?
A.
He had lost none of his limbs when I saw him.
B.
He was forced by his mother to take part in the battle.
C.
He had killed two his enemies when I saw him.
D.
He was the leader of the musical band.
【单选题】( )指在买方占优势的情况下,以胁迫的方式要求供应商降低价格,并不征询供应商的意见。