下列有关实验现象的描述，正确的是（ ） A．硫在空气中燃烧，产生蓝紫色火焰 B．

141. According to recent reports, one of the rare animals, _______ crocodile, will be in danger of dying out in _____ 2020s.

A．a; /

B．the; the

C．the; /

D．/; the

Based on the financial information of the machinery business (Table 5-1, Table 5-2, Table 5-3 and Table 5-4) and the description of business arrangements(Table 5-5) provided by H Group in the due diligence data room, (1) identify the three balance sheet items that had significant (over 20%) fluctuation and calculate the percentage of each fluctuation;(2) calculate the turnover days of trade receivables and inventory for both 2009 and 2010 with their year-end balances and the corresponding sales and cost amounts; (3) draft a list of questions to H Group regarding (i) the significant fluctuations in balance sheet items and (ii) the inconsistencies between the financial data (Table 5-2，Table 5-3 and Table 5-4) and the description of typical business arrangements (Table 5-5). (注:第(2)小题中一年按365天计算，答案四舍五入至整天。准备第(3)小题要求的问题清单时，应先指出有关的重大波动及信息不一致的情况，然后提出问题。)

空气泡沫灭火剂主要由蛋白泡沫灭火剂和合成泡沫灭火剂组成。

柜员在综合业务系统中每日营业结束做的最后一件事是（）。

A.网点签到

B.柜员签到

C.柜员签退

D.网点签退

女性，30岁，在输液过程中主诉全身发冷、寒战、头痛、恶心，体温38.5℃。脉搏108次/分。病人发生的输液反应是

A．过敏反应
B．发热反应
C．循环负荷过重
D．静脉炎
E．空气栓塞