搜题请搜索小程序“爱下问搜题”
问题 填空题 案例分析题

胰液分泌的调节是一个复杂的过程，图一为胰液分泌调节的示意图（部分），图二为咀嚼食物引起胰液分泌的反射弧的结构简图。请据图回答：

激素A（）（填需要或不需要）导管送入血液，由血液运输到靶器官发挥作用。它的靶器官是（）。为什么激素A不会作用于其它器官？（）

答案

参考答案：不需要；胰腺；胰腺细胞表面有接受激素A的特异性受体

单项选择题

只要在世界的某个地方有考察活动或召开会议，那么，必定有一个联合国高级官员到场。他们利用每一种机会从纽约飞往气候宜人的风景区：每年冬天在牙买加举办有关海洋法的谈判，而夏天则在冷热适宜的口内瓦召开经济与社会理事会会议。 这段文字主要支持的一个观点是( )。

A．世界各地召开的许多会议都有联合国的官员参加

B．联合的高级官员工作繁忙，非常辛苦

C．联合国的高级官员利用出差机会到处旅游

D．联合国在世界各地建造的造价昂贵的建筑是很大的浪费
查看答案
填空题


Statistics from China (1) be mind boggling: 1.2 billion (2) , 1.73 trillion cigarettes smoked in a year, 7,000 different (3) of woody plants. But amid all of these staggering sums, one factoid stands (4) for both its audacious size and for what it says about China’s future: there are 630 million Chinese under the age of 24. That’s a lot of (5) energy to burn. Materialism may be the (6) preoccupation among China’s young people these days, but just beneath the surface lies a feeling (7) wounded nationalist pride and an ever-deepening spiritual hunger. It isn’t clear where China’s young people are headed. But this is a generation that, by its (8) size and certain talents, will (9) the world’s destiny.
Here’s another sobering statistic: this is Terry McCarthy’s 22nd, and final, cover (10) for TIME Asia-he’s leaving the region (11) three years to become TIME’s Los Angeles (12) chief. McCarthy, who has indefatigably crisscrossed Asia out of his twin bases of Hong Kong and Shanghai, was the main driver (13) this week’s superb special report on young China. He developed the story list, guided much (14) the reporting
and wrote some of the articles. All (15) planning a swank black-tie masked ball last weekend in Shanghai. "I was (16) by the willingness of individual Chinese to write for us or talk about their (17) ," McCarthy says about the special (18) . "These are the guys (19) are going to be running the country in 20 (20) ." If we’re lucky, McCarthy will be back in the region long before then.
查看答案