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【多选题】
为保证实验安全，取得预期实验效果，养成良好的实验习惯。我们应掌握正确的实验操作并遵循化学实验的安全规则，下列做法正确的是________________。A.
实验前，应明确实验步骤和注意事项，自己设计的实验方案，得老师同意后再进行操作
B.
不准在实验室内嬉戏打闹、大声谈话
C.
为了便于观察，可用手接触药品，直接闻药品气味，但严禁品尝药品
D.
加热操作中，不要凑近被加热仪器直视观察，不要将试管口朝向自己或他人
E.
易燃、易爆的药品要远离火源，避免将腐蚀性药品沾在衣服或皮肤上
F.
切忌向燃着的酒精灯内添加酒精，可用燃着的酒精灯去点燃另一个酒精灯
G.
注意安全用电和节约用水，离开实验室前，务必关闭电源和水源
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【单选题】The income statement for Feel Good Health Foods shows gross profit of $151,000, operating expenses of $126,000, and cost of goods sold of $215,000. What is the amount of net sales revenue?
A.
$277,000
B.
$492,000
C.
$366,000
D.
$341,000
【单选题】In 2009, an agricultural company introduced a new cropping process which reduced the cost of growing some of its crops. If sales in 2008 and 2009 were steady at $30 million, but the gross margin incre...
A.
$330,000
B.
$660,000
C.
$264,000
D.
$462,000
【单选题】某糖尿病患者，于某日餐前突然感到饥饿难忍、全身无力、心慌、出虚汗，继而神志恍惚，护士应立即采取哪项措施
A.
静脉取血测血糖
B.
协助患者饮糖水
C.
进行血压监测
D.
建立静脉通路
E.
专人护理
【单选题】Three salespeople are paid commissions in proportion to the amount of their sales, which total $25, 000, $40, 000, and $60,000, respectively. If a total of $20,000 is allocated for these three commiss...
A.
$8000
B.
$8400
C.
$9600
D.
$10000
E.
$12000
【简答题】Bob is a sole trader. He has calculated a cost of sales figure for the year, which is $342,000.Bob received a payment of $8,030 into the business bank account for goods sold on a specialdeal to Harry ...
【单选题】糖尿病患者，于某日餐前突感饥饿难忍、全身无力、心慌、出虚汗，继而神志恍惚。此时护士应立即采取的措施是
A.
静脉取血测血糖
B.
协助患者饮糖水
C.
进行血压监测
D.
建立静脉通路
E.
专人护理
【单选题】位于糖酵解、糖异生、磷酸戊糖途径、糖原合成与分解各条代谢途径交汇点上的化合物是
A.
1 -磷酸葡萄糖
B.
6 -磷酸葡萄糖
C.
1，6-二磷酸果糖
D.
3 -磷酸甘油醛
E.
6 -磷酸果糖
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