甲乙双方签订了一份货物买卖合同，并在合同中约定了仲裁条款。后_爱下问搜题

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问题单项选择题

甲乙双方签订了一份货物买卖合同，并在合同中约定了仲裁条款。后来该合同损害社会公共利益而无效。乙方根据合同中约定的仲裁条款向仲裁机构申请仲裁，要求甲方赔偿因合同无效造成的损失；甲方则向仲裁委员会提出异议，认为该仲裁条款随着合同的无效已失去效力。在此种情况下，下列关于仲裁条款法律效力的表述正确的是：

A．合同无效，该仲裁条款自然失效

B．必须经仲裁委员会认定，该仲裁条款才有效

C．必须由人民法院裁定该仲裁条款是否有效

D．合同的无效不影响仲裁条款的效力，该仲裁条款自然有效

答案

参考答案：D

解析：理由：本题考查仲裁协议或仲裁条款的效力与主合同的关系。《仲裁法》第19条第1款规定：“仲裁协议独立存在，合同的变更、解除、终止或者无效，不影响仲裁协议的效力。”可见，仲裁条款具有独立性，在主合同变更、解除、终止及无效四种情况下，仲裁协议仍然自然有效。

计算题

如图所示，质量为m=8.0×10^-25kg，电荷量为q=1.6×10^-15C的带正电粒子从坐标原点O处沿xOy平面射入第一象限内，且与x方向夹角大于等于30⁰的范围内，粒子射入时的速度方向不同，但大小均为v₀=2.0×10⁷m/s.现在某一区域内加一方向向里且垂直于xOy平面的匀强磁场，磁感应强度大小为B=0.1T，若这些粒子穿过磁场后都能射到与y轴平行的荧光屏MN上，并且当把荧光屏MN向左移动时，屏上光斑长度和位置保持不变。求：

(1) 粒子从y轴穿过的范围；

(2) 荧光屏上光斑的长度；

(3) 从最高点和最低点打到荧光屏MN上的粒子运动的时间差。

(4)画出所加磁场的最小范围（用斜线表示）

完形填空

Wishing to encourage her young son’s progress on the piano, a mother took her boy to a Paderewski concert. After they were 1 , the mother spotted a friend in the audience and walked down the passage to greet her.
Seizing the 2 to explore the wonders of the concert hall, the little boy rose and 3__ explored his way through a door marked “NO ADMITTANCE.” When the house lights dimmed and the concert was about to begin, the mother returned to her seat and 4 that the child was missing.
Suddenly, the curtains parted and spotlights focused on the impressive Steinway on stage. In __5 , the mother saw her little boy sitting at the key-board, 6__ picking out Twinkle, Twinkle Little Star.
At that moment, the great piano master made his 7 , quickly moved to the piano, and __8 in the boy’s ear, “Don’t quit. Keep playing.”
Then 9 over, Paderewski reached down with his left hand and began filling in a bass part. Soon his right arm reached around to the other side of the child and he added a running obbligato (伴奏). Together, the old master and the young novice (beginner) transformed a frightening situation into a wonderfully 10 experience. The audience was strongly 11 .
That’s the way it is in life. What we can accomplish on our own is hardly 12 . We try our best, but the 13 aren’t exactly graceful flowing music. But when we trust in the hands of a Greater Power, our life’s work 14 can be beautiful.
Next time you set out to 15 great achievements, listen carefully. You can hear the voice of the Master, whispering in your ear, “Don’t quit. Keep playing.”

C．opportunity

B．occasionally

C．fortunately

B．disappearance

C．arrangement

C．unimportant

D．fortunately