不孕症最常见的原因是（） A.较大的子宫肌壁间平滑肌瘤 B.输卵管炎症 C.宫颈原位

阅读下面短文判断句子对(√)错(×)。

      Do you like snow? I think you will say " Yes ". In winter, the weather is very cold. Many children like to

play with snow. Some of them make snowmen. They're very happy. Where does the snow come from? It

comes from little water drops. When the temperature falls below (在……以下) 0℃, the little water drops

become snow. They're white and clean, like small flowers. They make the world more beautiful.

( ) 1. The weather is very hot in winter.

( ) 2. Many children like to play with snow.

( ) 3. We can't make snowmen when it snows.

( ) 4. The snow comes from litter water drops.

( ) 5. When the temperature falls below 0℃, it begins to snow.

为了进一步确诊，还需要进行哪一项检查

A．麻醉测验

B．冷测验

C．热测验

D．染色法测验

E．咬诊法测验

以治疗前后量表SCL-90总分的改变来反映疗效，其评估标准是减分率≥25%为有效，减分率≥（）为显效。

A.70%

B.75%

C.35%

D.50%

They will complete the work ______.

A．after a few weeks’ time

B．in a few weeks’ time

C．after a few weeks’ time

D．in a few week’s time

2013年10月底以来，从东北到京津冀鲁，再到长三角、长沙、柳州等地，雾霾侵袭范围越发扩散。中国气象局的数据显示，近期全国平均雾霾天数为52年来之最，皖、湘、鄂等地均创下“历史纪录”，呈现出持续时间长、范围广、影响大、污染重等特点。

（1）材料反映了什么问题?（2分）

（2）国家要求要将PM2.5列入空气质量标准进行监测、公布。因此，有人认为以上举措的实施能彻底改变我国的空气质量。请你谈谈你的看法。（8分）