完形填空

    People all over the world eat rice. 1 people in Asia (亚洲), Africa (非洲) and South America 2 it every day of their lives. Some people almost don't eat 3 except rice.

    Rice is a kind of 4. There are more than 7, 000 kinds of rice. Most kinds are water plants. Farmers 5rice in many countries even in the southern part of Russia and in eastern Australia.

    No one really knows where rice 6. Someone in China wrote about it almost 5,000 years ago. Some scientists (科学家) think that rice 7 in West Africa first, but 8 think it 9from India and then was 10to other parts of the world.

三清山国家地质公园，位于东经117°59′一118°30′，北纬28°54′～28°58′，素有“天下第一仙峰，世上无双福地”之殊誉，景观布局“东险、西奇、南绝、北秀”，“奇峰怪石、古树名花、流泉飞瀑、云海雾涛”并称四绝。三清山和黄山属同一地貌，故又有小黄山之称。司春女神、巨蟒出山、老子看经、猴王献宝都是其著名景观。据此回答3题。

以下省级行政区中，拥有世界遗产数量最多的是（   ）

下列有关愈伤组织的叙述错误的是

若将直尺的0cm刻度线与半径为5cm的量角器的0º线对齐，并让量角器沿直尺的边缘无滑动地滚动（如图），则直尺上的10cm刻度线对应量角器上的度数约为（   ）