心绞痛
A.疼痛放射至左腰部B.疼痛放射至左上臂及前臂尺侧C.疼痛放射至腹股沟D.疼痛放射至右肩部E.疼痛放射至下腹部
参考答案:B
根据植物新品种保护条例及相关规定,下列说法哪些是正确的
A.申请品种权的植物新品种应当属于国家植物品种保护目录中列举的植物的属或者种
B.授予品种权的植物新品种应当同时具备新颖性、创造性、一致性和稳定性
C.授予品种权的植物新品种应当具备适当的名称,并与相同或者相近的植物属或者种中已知品种的名称相区别
D.违反社会公德的名称不得用于授权品种的命名
The United States is well-known for its network of major highways designed to help a driver get from one place to another in the shortest possible time. (51) these wide modern roads are generally smooth and well maintained, with (52) sharp curves and many straight sections, a direct route is not always the most (53) one. Large highways often pass by scenic areas and interesting small towns. Furthermore, these highways generally (54) large urban centers which means that they become crowded with heavy traffic during rush hours, (55) the "fast, direct" way becomes a very slow route.
However, there is almost always another route to take (56) you are not in a hurry. Not far from the (57) new "super highways", there are often older, less heavily traveled roads which go through the countryside. (58) of these are good two-lane roads; others are uneven roads curling through the country. These secondary routes may go up steep slopes, along high cliffs, or down frightening hillsides to towns (59) in deep valleys. Through these less direct routes, longer and slower, they generally go to place where the air is clean and the scenery is beautiful, and the driver may have a (60) to get a fresh, clean view of the world.
51().
A. Although
B. Since
C. Because
D. Therefore