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问题 选择题

“ * * ”中我国国民经济遭受严重破坏，1973年却出现复苏局面，这是因为

A．周恩来主持中央日常工作，着手恢复国民经济

B．“ * * ”遭到毛 * * 批评

C．“ * * ”动乱接近尾声　　

D．国际形势趋于缓和

答案

答案：A

多项选择题


某女，30岁，职业医师，因惧怕花圈来临床心理科咨询与治疗。体检未见异常。心理咨询师与其认真协商后，双方(包括家属)签订了进行满灌疗法的协议。在一间小的治疗室中，所有墙壁均粘上花圈图案，室内放十个大花圈，中间桌上堆满小花圈。求助者进入治疗室时，呼吸加快，全身颤抖，手足无措。突然响起哀乐。她想退出，但门已关闭，只能待在治疗室内、求助者企图远离花圈，但治疗室太小，花圈几乎碰到了地。求助者喘息不止，大汗淋漓，跌坐在椅子上。40分钟后，颤抖减轻，呼吸渐渐平隐，虽一脸疲惫，但如释重负。
第二次治疗方法同上，但求助者几乎没有明显的情绪反应，植物性神经反应也大为减轻。其后追踪显示，她已不再惧怕花圈。

满灌疗法不适用于( )。

A．儿童

B．老人

C．孕妇

D．体弱者
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单项选择题

The blue of the sea is caused by the scattering of sunlight by tiny particles suspended in the water. Blue light, being of short wavelength, is scattered more efficiently than light of longer wavelengths. Although waters of the open ocean are commonly some shade of blue, green water is commonly seen near coasts, especially in tropical or subtropical regions. This is caused by yellow pigments being mixed with blue water. Phytoplankton are one source of the yellow pigment. Other microscopic plants may color the water brown or brownish-red. Near the shore, silt or sediment in suspension can give water a brownish hue. Outflow of large rivers can often be observed many miles offshore by the coloration of suspended soil particles.
Marine phytoplankton (Greek for "plant wanderers") are microscopic single-celled plants that include diatoms, dinoflagellates, coccolithophorids, green algae, and blue-green algae, among others. The growth of these organisms, which photosynthesize light, depends on a delicate balance of nutrient enrichment via vertical mixing, which is often limited by the availability of nitrogen and light. Diatoms are one-celled plants with patterned glass coverings. Each glass, or silicon dioxide box, is ornamented with species-specific designs, pits, and perforations making them popular with microscopists and, more recently, electron scanning microscopists.

Phytoplankton are the source of which color pigment

A．Red.

B．Green.

C．Yellow.

D．Blue.
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