事实上任何一个不可避免的灾害原本就是社会人口因素与生态系统中

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问题单项选择题

事实上任何一个不可避免的灾害原本就是社会人口因素与生态系统中潜在的破坏性因素相结合的产物。就舟曲泥石流而言，人类活动的______和社会管理______显然是灾害的要素之一，但在地质专家们看来，这些原因还远不足以将舟曲之灾______为人祸之故。
依次填入画横线部分最恰当的一项是( )。

A．加速疏忽断言
B．破坏漏洞归咎
C．频繁忽略断定
D．加剧疏漏妄定

答案

参考答案：D

解析：根据文段意思，第一个空应填入表示人类活动的消极效果的词语，排除A、C。根据“之故”，排除“归咎”。故选D。

阅读理解

根据短文，选择正确答案。

It's Sunday today. Sarah gets up at 5:30 in the morning. She eats breakfast quickly. Because her teachers

will take them to a farm to help the farmers plant trees. They get on the bus at 6:50. When they arrive, the

farmers are planting the trees. Look! Mike is digging a hole. Amy is watering the trees. They are working hard.

At noon, all of them are tired, but they are very happy. They eat lunch on the farm with the farmers. They learn

a lot from the farmers. It's 5:10 in the afternoon, they reach their school. Suddenly they all laugh at each other.

Why? Because each of them has a dirty face.

1. Where does Sarah eat her lunch?[ ]

A. At home.

B. At school.

C. On the farm.

2. Who is watering the trees?[ ]

A. Amy.

B. Sarah.

C. Mike.

3. —How do they feel on the farm? —They are .[ ]

A. tired

B. happy

C. tired and happy

4. —When does Sarah get up? —She gets up .[ ]

A. at 6:00 am

B. very early

C. very late

5. Who do they help to plant trees?[ ]

A. The students.

B. The farmers.

C. The teachers.

单项选择题

采用阳极保护技术的实质是向不锈钢通入一定量的电流，使各部位电位都维持在（）

A、活化区

B、钝化过渡区

C、钝化区

D、过钝化区