关于下列for t in range(1, 11): x = int(input()) if x>=0: print(x)循环,叙述正确的是()。
A.当x小于0时整个循环结束
B.x大于等于0时什么也不输出
C.程序最多能输出11个数
D.程序可能什么都不会输出
A.当x小于0时整个循环结束
B.x大于等于0时什么也不输出
C.程序最多能输出11个数
D.程序可能什么都不会输出
从下面提供的答案中选出应填入下列英文语句中______内的正确答案。
For users, microkernel technology promises(1), compact and sophisticated operating systems that are typically(2)across a range of hardware platforms. These operating systems will be customizable to let users run multiple operating system and application "personalities" on top of a single microkernel(3).
Microkernel based systems can provide this flexibility because the core operating system functions are(4)from the large number of utilities, features and extensions that are layered on top of them. As a result, updating and maintaining operating system is easier, since developers don't have to modify the(5)every time they must add a new feature.
A.3
B.-2
C.4
D.-1
下列关于经营期现金净流量的计算公式,错误的是()。
A.现金净流量=现金流入量一现金流出量
B.现金净流量=营业收入一付现成本+所得税
C.现金净流量=营业收入(1—T)一付现成本(1一T)+折旧×T
D.现金净流量=税后利润+折旧
根据以下资料,回答11~15题。The word“harness”in Paragraph 2 can be replaced by“____”. A)take advantage of B)be independent of C)produce an effect on D)expand the range of
A.交易时间为每周一至周五,上午9:30~11:30,下午1:00~3:00
B.交易遵守“价格优先、时间优先”的原则
C.申报价格最小变动幅度为0.001元
D.实行T 2日交割、交收
关于艾滋病的病因和发病机制的叙述,下列哪项是不正确的()
A.HIV属于RNA逆转录病毒
B.有HIV一1和HIV一2两型
C.HIV对外界抵抗力弱,离开人体后不易生存
D.HIV的主要靶细胞是CD8阳性T淋巴细胞
E.HIV在宿主细胞内复制导致宿主细胞死亡
下列关于10年期国债期货合约的说法中,正确的是()。 Ⅰ.上市的10年期国债期货合约交易代码为T Ⅱ.实行到期实物交割 Ⅲ.标的为面值1 000万元人民币、票面利率6%的名义长期国债 Ⅳ.挂牌合约为最近的三个季月,最低交易保证金为2%
A.Ⅱ、Ⅲ、Ⅳ
B.Ⅰ、Ⅱ、Ⅳ
C.Ⅱ、Ⅳ
D.Ⅰ、Ⅱ、Ⅲ、Ⅳ
根据下列问题的题意建立相应的微分方程,并列出初始条件(不具体解微分方程): (1)某化学反应的速率(反应物浓度x关于时间t的变化率)与反应物该瞬时的浓度x成正比(比例系数k>0),开始时的浓度为x0,求反应物浓度随时间变化的规律x(t); (2)已知曲线过点(1,2),其上任一点处的切线斜率为2x,求曲线方程y=F(x); (3)将一物体以初速度v0从地面竖直上抛(不计空气阻力),求物体上抛距离s关于时间t的变化规律s=s(t)(坐标原点设在地面).
Which of the following is NOT true?
A.To achieve creative thinking, one should create new things in the mind.
B.It is useful to imagine the whole range of our senses.
C.Using the right side of one's brain helps develop creative thinking.
D.It is pointless to practice one's visual thinking.
A.for i in range(10,0): sum+=i
B.for i in range(1, 11): sum+=i
C.for i in range(10, 0, -1): sum+=i
D.for i in (10, 9, 8, 7, 6, 5, 4, 3, 2, 1): sum+=i
W: You're right in a way. But they can range widely in cost from inexpensive to very expensive.
Q: What does the woman think of such restaurants?
(18)
A.She thinks they are expensive.
B.She doesn't think they are expensive.
C.She thinks some are not expensive.
D.She has no idea about this.