副交感神经节前纤维释放的递质是（  ）。

羚羊角内的细小孔道，称为（ ）

在分子中引入可增强与受体的结合力，增加水溶性，改变生物活性的基团是

下列关于公路工程施工技术交底工作，正确的是(  )。

下列各项中，除哪项外均属八正散的组成药物(   )

下列（  ）属于偿债能力分析指标。
Ⅰ.资产负债率
Ⅱ.流动比率
Ⅲ.存货周转率
Ⅳ.利息保障倍数

Passage 2

  That everyone's too busy these days is a cliche.But one specific complaint is made especially  mournfully: There's never any time to read.

What makes the problemthornier is that the usual time-management techniques don't  seem sufficient. The web's full of articlesoffering tips on making time to read: "Give up T"' or "Carry a bookwith you at all times." But in my experience, using such methods to freeup the odd 30 minutes doesn't work. Sit down to read and the flywheel of work-relatedthoughts keeps spinning-or else you're so exhausted that a challenging book'sthe last thing you need. The modern mind, Tim Parks, a novelist and critic,writes," is overwhelmingly inclined toward communication ... It is not simplythat one is interrupted: it is that one is actually inclined tointerruption." Deep reading re-quires not just time, but a special kind oftime which can't be obtained merely by becoming more

efficient.

   Infact, "becoming more efficient" is part of the problem. Thinking oftime as a resource to be maximised means you approach it instrumentally, judgingany given moment as well spent only in so far as it advances progress towardsome goal. Immersive reading, by contrast, depends on being will-ing to riskinefficiency, goallessness, even time-wasting. Try to slot it in as a to-do list item and you 'll  manage only goal-focused reading-useful,sometimes but not the most fulfilling kind. "The future

comes at us like empty bottles along an unstoppable and nearlyinfinite conveyor belt," writes Gary  Eberle  inhis book Sacred Time, and  "we feela pressure to fill these different-sized bottles(days, hours, minutes)as theypass, for if they get by without being filled, we will have wasted them."No mind-set could be worse for losing yourself in a book.

     So what does work? Perhaps surprisingly,scheduling regular times for reading. You'd think this might fuel theefficiency mind-set, but in fact, Eberle notes, such ritualistic behavior helpsus "step outside time's flow" into "soul time." You couldlimit distractions by reading only physical books, or on single-purposee-readers."Carry a book with you at all times" can actually work,too-providing you dip in often enough, so that reading becomes the defaultstate from which you tem-porarily surface to take care of business, beforedropping back down. On a really good day, it no longer feels as if you're   "making time to read", but justreading, and making time for everything else.                  

The usual time-management techniques don't work because_______.

把镜头作为电影语言的基本构成单位，从而奠定了电影作为一门独立艺术的基础的是（）。

下列各项中，与一氧化碳中毒无关的临床表现是(     )

甲公司权益净利率为30%，产权比率为1，则该公司的资产净利率为（  ）。

男，34岁。建筑工人。一次事故严重外伤，大量出血，血压下降，少尿。经抢救低血压和血容量已纠正，但尿量仍很少。为避免肾衰竭的进展，宜选用的药物是（   ）。