混凝土的耐久性包含（）。 A.抗渗性 B.抗冻性 C.抗侵蚀性 D.混凝土的碳化

国际收支是指一国居民在一定时期内与非本国居民在政治、经济、军事、文化及其他来往中所产生的全部交易的记录。在这里，“居民”是指()。

A．在国内居住一年以上的自然人和法人

B．正在国内居住的自然人和法人

C．拥有本国国籍的自然人

D．在国内居住一年以上的、拥有本国国籍的自然人

盐在日常生活中是用途非常广泛的一类物质。下列说法中不正确的是[ ]

A．添加大量的亚硝酸钠来保鲜食品

B．硝酸钾在农业上可用作复合肥

C．农业上常用硫酸铜配制波尔多液

D．用纯碱除去面粉发酵生成的酸

Bahagia Sdn Bhd was incorporated in December 2009. The first annual general meeting (AGM) of the company was held in April 2011. Appu and his uncle Jim are members of Bahagia Sdn Bhd. Appu attended the meeting but Jim did not attend as he did not receive notice of the meeting. The company claims that no notice was sent to Jim due to an accidental omission. At the meeting two separate resolutions were passed, namely, to alter the company’s articles as well as to increase the company’s share capital. Both resolutions were passed by a 60% majority.Required:Advise Appu and Jim, who seek your advice on the following:

(c) whether Jim can challenge the validity of the meeting on the ground that he did not receive notice of the meeting. (3 marks)

男性患者，20岁，足球比赛时被对方队员踢及下腹部，即刻发生腹痛、排尿困难， * * 口少量滴血，队友陪同来院急诊。

该患者入院后应做什么检查明确诊断（）

A.摄X线片

B.膀胱内注水试验

C.B超检查

D.CT检查

E.MRI检查

制丝所取样品应（），避免检测前发生变化；所取填充值、物料组成等样品应避免（）。