某课外活动小组将下图所示装置按一定顺序连接，在实验室里制取一定量的FeCl₃（所通气体过量并充分反应）。

请回答下列问题：

(1)装置A中发生反应的化学方程式为________________。

(2)各装置的正确连接顺序为（填写装置代号）A→ _____→____→____→D。

(3)装置C的作用是________________，写出装置D中反应的离子方程式：____________________。

(4)反应开始后，装置B中硬质玻璃管内的现象为____________________；可以检验生成物中是否含有

Fe³⁺的试剂是________。

(5)该小组欲用如图所示装置收集尾气，并测量多余气体的体积。

①若如图所示量气装置由干燥管、乳胶管和50 mL滴定管改造后组装而成，此处所用滴定管是______ （填“酸式”或“碱式”）滴定管。

②为了提高测量的准确性，如图装置中的液体可用___________________，收集完气体后，读数前应进行的操作是____________________。

③如果开始读数时操作正确，最后读数时俯视右边滴定管液面，会导致所测气体的体积______ （填“偏大”、“偏小”或“无影响”）。

Recently, I flew to Las Vegas to attend a meeting. As we were about to arrive, the pilot announced with apology that there would be a slight (16) before setting down. High desert winds had (17) the airport to close all but one runway. He said that we would be (18) the city for a few minutes waiting to (19) . We were also told to remain in our seats meanwhile with our seat belts fastened (20) there might be a few bumps(颠簸). Well, that few minutes turned into about four-five minutes, including a ride that would make a roller coaster(过山车) (21) by comparison. The movement was so fierce that several passengers felt (22) and had to use airsickness bags. As you might guess, that’ s not a good thing to have happen in a(n) (23) space because it only (24) to increase the discomfort of the situation.

About twenty minutes into the adventure, the entire airplane became very (25) There was now a sense of anxiety and fear that could be (26) noticed. Every passenger simply held on for dear life …except one. A (27) was having a good time！ With each bump of the (28) , he would let out a giggle (咯咯地笑)of delight. As I observed this, I (29) that he didn’t know he was supposed to be afraid and worried about his (30) . He neither thought about the past nor about the future. Those are what we gown--ups have learned from (31) . He was (32) the ride because he had not yet been taught to fear it. Having understood this, I took a deep breath and (33) back into my seat, pretending I was (34) on a roller coaster. I smiled for the rest of the flight. I even (35) to giggle once or twice, much to the chagrin(随恼) of the man sitting next to me holding the airsickness bag.

（26）（）

A．partly

B．gradually

C．shortly

D．clearly