如图为一物体做直线运动的速度图象，根据图作如下分析，（分别用v1、a1表示物体在

下列各句中，没有语病的一项是

A．“木秀于林，风必摧之”，在中国这个“酱缸哲学”的国度，优秀必然导致集体的仇视。历史固有观念的传承，中庸哲学的熏染，利益共同体的结合，张灵甫这颗将星过早地陨落了。

B．江西省九江学院瞄准电子商务的低门槛特点，在商学院大面积开展学生自主创业的实践课堂，指导学生们开办网店，学生的成绩按照网店的交易量、网店的装潢等多个指标评判。

C．4月6日，一场别开生面的趣味“科学集市”在浙江省科技馆举行。集市由果壳网和浙江省科技馆联合主办，汇集了“3D打印技术”、“菠萝发电”等趣味科学实验和发明十分精彩，吸引不少市民参观。

D．我们不要忘了，道德也有力量。这种力量往往在细微之处，在宏大叙事的疏忽之处，悄悄地影响着历史的进程，改变着历史的成色，决定着历史的性质，创造着历史的正面价值。

对下列实验事实的解释正确的是 （   ）

A．浓硝酸在光照条件下变黄，说明浓硝酸不稳定生成有色产物能溶于浓硝酸

B．在KI淀粉溶液中通入氯气，溶液变蓝，说明氯气能与淀粉发生显色反应

C．在某溶液中加入硝酸酸化的氯化钡溶液，有白色沉淀生成，说明含SO₄^2—

D．将铜片放入浓硫酸中，无明显实验现象，说明铜在冷的浓硫酸中发生钝化

列车的速度为每小时50公里，汽船的速度每小时30公里，若列车开行2小时汽船开行3小时，则列车比汽船多行了（ ）公里。

A．10

B．9

C．8

D．11

According to historical records，the first (1) Olympic Games can be traced back to 776 BC.They (2) dedicated to the Olympian gods and were staged on the (3) plains of Olympia.They continued for nearly 12 centuries， (4) Emperor Theodosius decreed in 393 A.D.that aU such"pagan cults" (5) banned.
The oldest myth which concerns the beginning of the (6) Games is that of Idaios Daktylos Herakles.According to other (7) ，Zeus，the father of humanity，fought and defeated Cronus in a (8) for the throne of the gods.Finally，the well-known (9) Herakles is mentioned who staged games in Olympia in honour (10) Zeus,because the latter had helped him conquer Elis when (11) went to war against Augeas.
Through the 12 centuries of (12) Olympic Games，many wonderful athletes competed in the stadium and (13) hippodrome of ancient Olympia’s sacred area，moving the crowds with (14) great achievements.Although mortal，their Olympic victories immortalised them.Of (15) best athletes who left their mark on the sacred vallev (16) Olympia，some surpassed all limits and became legends by winning (17) successive Olympic Games and remaining at the forefront of their (18) for more than a decade.
The ancient Olympic Games were (19) a one.day event until 684 BC.when they were extended (20) three days.In the 5th century B.C.，the Games were extended again to cover five days.

针对朝鲜核问题，中国政府提出了朝鲜半岛无核化、通过谈判解决问题、反对加剧半岛紧张局势等主张，积极推动六方会谈。中国政府之所以做出上述外交努力，是因为（）

①维护世界和平、促进共同发展是中国外交政策的宗旨

②维护中国的独立和主权是当前的首要任务

③中国需要为自己的发展创造良好的国际环境

④朝核问题的解决必须以朝鲜的国家利益为出发点

A.①②

B.①③

C.②③

D.②④