关于红细胞糖代谢比例，正确的是（ ） A．元氧酵解10%，己糖旁路90% B．无氧酵

下图是植物细胞亚显微结构模式图，请据图回答：

(1)如果将该细胞放入30%的蔗糖溶液中，将会出现细胞壁与[    ]______分离的现象。

(2)有光的条件下，¹⁴C标记的CO₂进入细胞后，首先在[    ]________发生反应，在该结构中含14C的系列产物有_______。该结构产生的含¹⁴C的产物主要在[    ]______彻底氧化分解成__________，为细胞生命活动提供能量。

(3)若该细胞是植物根尖细胞，则该细胞没有的结构是大液泡和[    ]_______，该细胞代谢和遗传的控制中心是[    ]_________；该细胞在形成分沁蛋白过程中所依赖的细胞器有[    ]______、[    ]_______、[    ]_________。

，浇筑层厚40cm，混凝土初凝时间按3h计，混凝土从出机口到浇筑入仓历时30min。则该工程拌合站小时生产能力最小应为()m3/h。

A.64 

B.70 

C.320 

D.352

阅读理解。

     People realize that, although animals may not have the same intelligence as human beings, they are clever

enough to learn certain things.

     Dogs are extremely useful as companions for blind people. When a dog has been properly trained, he will

always lead his blind master (主人) in the right direction and keep him out of danger. For example, seeing-eye

dogs learn never to cross a busy road when cars are coming, even if their master ordered them to do so.

     Horses are also able to learn many things. Horses that are used for guard or police duty must learn never

to be frightened of noises and traffic. Racing horses are able to run much faster than other horses, but they

are also quite high strung (紧张). Therefore, it is necessary for those people who train them to be very patient

(耐心) and understanding.

     The movie and television can use trained animals too. Some animals, such as monkeys and foxes, are easy

to film. All you have to do is make a trail in front of the camera by putting something that smells good to the

animals over the ground. Big animals, such as lions and tigers, can be photographed as they come happily back

to their families or dinner. If a movie actor is nearby, the well-trained animal will pay no attention to him.

However, the audience may imagine that the actor escaped a terrible death.

1. Seeing-eye dogs have to learn the following except _____.[ ]

A. following the master's order anytime

B. leading their master in the right direction

C. keeping their master safe while leading the way

D. crossing a busy road at the proper time

2. What does "make a trail" mean here in the last paragraph? [ ]

A. place something to attract the animal

B. give the animal a certain task

C. order the animal to do things

D. follow the animal to hunt

3. Lions can be photographed easily when _____. [ ]

A. they are following a trail of something that smells good

B. they are returning to their families

C. they have been trained to work with other animals

D. they do not know a movie-actor is nearby

4. Which of the following statements is the main idea of the passage? [ ]

A. Dangerous wild animals can be trained.

B. Dogs can be trained to help blind people.

C. Animals can be trained to learn certain things.

D. Animals can become interested in learning.

房地产组合投资管理公司则以( )为基础，来详细制订和执行一个投资组合战略。

A．物业类型或地域分布

B．物业更新改造等资本开支

C．持续收入和现金流

D．投资者的目标和风险/回报参数特征

由于用例在几个模块和类之间都存在关系，使用例成为整体测试的工具。对于每个用例应进行几种测试。其中按设计好的事件流测试属于哪种测试

A．基本情况测试

B．异常情况测试

C．客户文档测试

D．系统测试