[单项选择]缩孔残余系钢锭上部空隙，形成原因是由于金属在（）过程中体积收缩所致。
A. 凝固
B. 分解
C. 变化
D. 变形

The U.S. space agency, NASA, is planning to launch a satellite that scientists hope will answer fundamental questions about the origin and destiny of our universe. (41) __________.
The prevailing theory of the universe’s origin, the "Big Bang" theory, says all matter and energy were once compressed into a tiny point. The density and resulting temperature were so enormous that, about 13-to-15-billion years ago by current estimates, a mighty explosion flung the matter hurtling outward in all directions. (42) __________.They also ask, is the expansion accelerating Will the universe collapse What is its shape Scientists will seek explanations with NASA’s new Microwave Anisotropy Probe, abbreviated as MAP. (43) __________."MAP will take the ultimate baby picture, an image of the infant universe taken in the fossil light that is still present from the Big Bang," he says. "This glow, this radiation, is the oldest light in the universe. Imprin

案例一
（一）资料
2009年4月，某审计组对甲公司2008年度财务收支情况进行审计。
相关情况和资料如下：
1.审计人员在抽查记账凭证时发现，部分记账凭证上的审核与编制为同一人。经进一步了解，财会部门未建立表、账、证之间的定期核对制度。
2.审计人员抽取了2008年不同月份的若干张客户订货单，检查销售业务的授权审批情况。
3.审计人员对财会部门编制的应收账款明细表进行了复算，并与应收账款总账和报表进行了核对。
4.审计人员对应收账款进行了函证，根据回函内容，编制了应收账款函证汇总分析表。
5.审计人员对银行存款业务进行审计时，对支出金额在10万元以上的业务逐项审查；对支出金额在5万元至10万元之间的，随机抽取20%的业务进行审查；对支出金额在5万元以下的，随机抽取l%的业务进行审查。
（二）要求：根据上述资料，为下列问题从备选答案中选出正确的答案。