皮皮学,免费搜题
登录
搜题
【单选题】
The cowboy is the hero of many movies. He is, even today, a symbol of courage and adventure. But what was the life of the cowboy really like? The cowboy's job is clear from the word cowboy. Cowboys were men who took care of cows and other cattle. The cattle were in the West and in Texas. People in the cities of the East wanted beef from these cattle. Trains could take the cattle east. But first the cattle had to get to the trains. Part of the cowboy's job was to take the cattle hundreds of miles to the railroad towns. The trips were called cattle drives. A cattle drive usually took several months. Cowboys rode for sixteen hours a day. Because they rode so much, each cowboy brought along about eight horses. A cowboy changed horses several times each day. The cowboys had to make sure that the cattle arrived safely. Before starting on a drive, the cowboys branded the cattle. They burned a mark on the cattle to show who they belonged to. But these marks didn't stop rustlers, or cattle thieves. Cowboys had to protect the cattle from rustlers. Rustlers made the dangerous trip even more dangerous. Even though their work was very difficult and dangerous, cowboys did not earn much money. They were paid badly. Yet cowboys liked their way of life. They lived in a wild and open country. They lived a life of adventure and freedom. A cowboy is a symbol of______.
A.
courage and adventure
B.
a hard life and big pay
C.
movies in the past
D.
cows and other cattle
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【简答题】真核生物DNA的复制与原核生物DNA的复制相比具有哪些特点
【单选题】颗粒剂的工艺流程为
A.
制软材→制湿颗粒→分级→分剂量→包装
B.
制软材→制湿颗粒→干燥_→整粒与分级→包装
C.
粉碎→过筛→混合→分剂量→包装
D.
制软材→制湿颗粒→干燥→整粒→包装
E.
制软材→制湿颗粒→干燥→整粒→压片→包装
【多选题】下列哪些是DNA复制的特征
A.
不对称复制
B.
半保留复制
C.
半不连续复制
D.
有特定的复制起始点
E.
双向复制
【单选题】计算机存储容量的基本单位是
A.
字节
B.
C.
字块
D.
【单选题】计算机存储容量的基本单位是
A.
B.
字节
C.
D.
【简答题】衡量油脂营养价值的有两个指标,一是不饱和脂肪酸的含量;二是 的含量。
【单选题】颗粒剂的工艺流程为
A.
制软材→制湿颗粒→分级→分剂量→包装
B.
制软材→制湿颗粒→干燥→整粒与分级→包装
C.
粉碎→过筛→混合→分剂量→包装
D.
制软材→制湿颗粒→干燥→整粒→包装
【简答题】DNA的复制具有哪些特点
【简答题】相对于原核生物DNA复制的延长,真核生物DNA复制延长有哪些特点?
【单选题】计算机存储容量的基本单位是
A.
B.
字节
C.
字长
D.
其他
相关题目: