根据《商标法》的规定，下列选项中，不得作为注册商标的有( )。 A．缺乏显著特征

The First Americans

There was a time long ago when a land bridge connected Asia and North America. The first settlers in North America crossed this land bridge from what is now Siberia to Alaska. The people who made this initial(最初的) crossing were probably following the animals they used for food. Eventually, the oceans rose and the land bridge between the continents disappeared. The settlers, who I shall call the “First Americans”， could not return to their homeland. _小题1:__

For the next few thousand years, the First Americans migrated（迁徙） south and east throughout North and South America. They made the journey all the way from Alaska to the southern tip of South America, a distance of more than 10, 000 miles. __小题2:__In the far north, above the Arctic Circle, the First Americans became hunters of the ocean.  __小题3:__ In the brief summer，they gathered berries and other plants. In the winter, they stayed in lodges much of the time preparing for the next summer. It was a hard life，but they learned to survive in these harsh conditions.

Farther south, in what is now Arizona, Utah, Colorado, and New Mexico, the First Americans became cliff dwellers(悬崖居民). They began by living in caves that already existed in the cliffs.__小题4:__ The dwellings(住处) they constructed in many ways resembled today's apartment buildings.__小题5:__ They built a system of dams and canals so they could store and use water almost any time of the year. They were so successful that they could raise fruits and vegetables that were not found naturally in the desert. In Mexico and South America, the First Americans founded civilizations that were among the greatest in the world. They built huge pyramids, lived in fabulous cities, and made great advances in science and mathematics long before the Europeans arrived.

A．They also discovered foods like corn and potatoes.

B．Along the way，they established（建立） many different civilizations.

C．The First Americans of the Southwest learned to irrigate（灌溉） the desert.

D．They would have to survive in the New World they had discovered.E. They built boats of animal skins and hunted or fished for their food.

F. People living near each other tended to share similar environments and customs.

G. They discovered how to add to the caves by building structures of wood and stone.

短暂性全面遗忘症可能与下列哪些动脉缺血有关（）

A.大脑前动脉

B.大脑中动脉

C.大脑后动脉的颞支

D.椎-基底动脉

E.颈内动脉

一油桶装有一些油，用去了60%，恰好剩下48千克．原来桶里装有多少千克的油？

如图所示，北京奥运会会徽的“京”字被 巧妙地幻化成一个向前奔跑，舞动着迎接胜利的运动人形，对于一个奔跑运动的人来说，速度越快，__________能越大．2008年5月29日下午，奥运圣火在芜湖成功传递，已知此次传递全程约10km，历时65 min，则火炬传递全程的平均速度约为_________ km/min.为庆祝圣火顺利传递，当晚在湖滨公园 上空放飞许多“孔明灯”，在点燃灯笼底部的燃料后，灯笼在空气的_________力作用下逐渐上升．

在2014年2月26日京津冀协同发展工作座谈会上，习 * * * * 的讲话首次将京津冀协同发展上升到国家战略层面.“京津冀一体化”作为一个重大国家战略一经提出，就引起了北京、天津、河北三地的高度重视和关注，一系列规划和设想也陆续出台。这说明（）

①意识活动具有规律性

②意识活动具有客观性

③意识活动具有自觉选择性

④意识活动具有主动创造性

A.①②

B.①④

C.②③

D.③④