制动器抱不住分析故障原因，如何处理？

未成年人的权益是否得到切实有效的保护是考察一个国家 * * 水平的一个重要方面。[     ]

女性患者，60岁，4个月前因肺癌行手术治疗。10天来感气短、下肢水肿。1天来症状加重。查体：BP105/84mmHg，呼吸急促，颈静脉怒张，双肺未闻啰音，心界向两侧扩大，HR120次/分，心音遥远，有奇脉，肝脏肋下2cm，下肢水肿。心电图显示窦性心动过速。

确立诊断后，应立即采取哪一项措施急救（）

A.吸氧

B.多巴胺

C.西地兰

D.补充血容量

E.心包穿刺抽液

某男性、67岁，患阻塞性肺疾病12年余，近日着凉后，咳嗽、咳黄痰、气喘加剧，伴发热，上腹胀痛，纳差，肝大伴压痛，下肢轻度水肿，心电图偶见房性过早搏动。

异丙托溴胺的最常见副作用为()

A．心悸

B．手抖

C．失眠

D．腹泻

E．排尿困难

( )是流动资产中最重要的组成部分。

A．现金

B．利润

C．股票

D．存货

Most plants can make their own food from sunlight, (1) some have discovered that stealing is an easier way to live. Thousands of plant species get by (2) photosynthesizing, and over 400 of these species seem to live by pilfering sugars from an underground (3) of fungi(真菌). But in (4) a handful of these plants has this modus operandi been traced to a relatively obscure fungus. To find out how (5) are (6) , mycologist Martin Bidartondo of the University of California at Berkeley and his team looked in their roots. What they found were (7) of a common type of fungus, so (8) that it is found in nearly 70 percent of all plants. The presence of this common fungus in these plants not only (9) at how they survive, says Bidartondo, but also suggests that many ordinary plants might prosper from a little looting, too.

Plants have (10) relations to get what they need to survive. Normal, (11) plants can make their own carbohydrates through photosynthesis, but they still need minerals. Most plants have (12) a symbiotic relationship with a (13) network of what are called my corrhizal fungi, which lies beneath the forest (14) . The fungi help green plants absorb minerals through their roots, and (15) , the plants normally (16) the fungi with sugars, or carbon with a number of plants sharing the same fungal web, it was perhaps (17) that a few cheaters—dubbed epiparasites—would evolve to beat the system. (18) , these plants reversed the flow of carbon, (19) it into their roots from the fungi (20) releasing it as "payment.\

9（）

A.shows

B.denotes

C.indicates

D.hints