[不定项选择题]某种试验筛检乳腺癌，以活检作为验证，实际患有乳腺癌的1000名妇女经筛检有900名阳性，实际未患乳腺癌的1000名妇女经筛检有50名阳性。 该筛检项目的假阳性率为
A.5％
B.10％
C.95％
D.94．7％
E.90％

[不定项选择题]某种试验筛检乳腺癌，以活检作为验证，实际患有乳腺癌的1000名妇女经筛检有900名阳性，实际未患乳腺癌的1000名妇女经筛检有50名阳性。 该筛检项目的阳性预测值为
A.10％
B.94．7％
C.95％
D.5％
E.90％

[不定项选择题]甲公司生产某种产品，该产品单位售价160元，单位变动成本120元，2016年度销售360万件。 2017年为扩大销售量、缩短平均收款期，甲公司拟实行“5/10、2/30、n/50”新的信用政策；采用该政策后，经测算：产品销售量将增加15%，占销售额40%的客户在10天内付款、占销售额30%的客户在30天内付款、占销售额20%的客户会在50天内付款、剩余部分的平均收款期为80天，逾期应收账款的收回需支出的收账费用及坏账损失占逾期账款金额的10%。 甲公司2016年度采用“n/30”的信用政策，其平均收款期为50天，40%的销售额在信用期内未付款，逾期应收账款的坏账损失占逾期账款金额的4.5%，收款费用占逾期账款金额的3%。假设有价证券报酬率为8%，一年按360天计算，其他条件不变。 根据上述资料，回答以下各题。 在新的信用政策下，甲公司应收账款机会成本为（　　）万元。
A.382.72
B.395.80
C.342.24
D.588.80

[不定项选择题]功能活血化瘀，善调妇女经水，为妇科要药的是
A.乳香
B.五灵脂
C.丹参
D.桃仁
E.红花

[不定项选择题]企业清仓处理某种商品，每件商品在原价的基础上打八折后再减200元，平均每件商品亏损440元。已知该商品的原价比成本高20%，问在清仓处理期间，10万元最多能购买多少件这种商品?
A.16
B.17
C.18
D.19

[不定项选择题]共用题干 Animal's “Sixth Sense”
A tsunami（海啸）was triggered（引发）by an earthquake in the Indian Ocean in December, 2004.It killed tens of thousands of people in Asia and East Africa. Wild animals,1， seem to have escaped that terrible tsunami. This phenomenon adds weight to notions that they possess a“sixth sense” for2 ,experts said.
Sri Lankan wildlife officials have said the giant waves that killed over 24,000 people along the Indian Ocean island's coast clearly 3 wild beasts,with no dead animals found.
“No elephants are dead,not4a dead rabbit. I think animals can5 disaster.
They have a sixth sense. They know when things are happening,” H. D. Ratnayake,deputy director of Sri Lanka's Wildlife Department,said about one month after the tsunami attack. The6washed floodwaters up to 2 miles inland at Yala National Park in the ravaged（被 毁坏的）southeast, Sri Lanka's biggest wildlife7and home to hundreds of wild elephants and several leopards（豹）.
“There has been a lot of8 evidence about dogs barking or birds migrating before volcanic eruptions（火山爆发）or earthquakes. But it has not been proven ,” said Matthew van Lierop,an animal behavior 9 at Johannesburg Zoo.
“There have been no10studies because you can't really test it in a lab or field setting , ” he told Reuters. Other authorities concurred（同意）with this11.
“Wildlife seem to be able to pick up certain12 ,especially birds…there are many re- ports of birds detecting impending（迫近的）disasters , ” said Clive Walker , who has written several books on African wildlife.
Animals13 rely on the known senses such as smell or hearing to avoid danger such as predators（食肉动物）.
The notion of an animal “sixth sense”一or14other mythical power一is an enduring one which the evidence on Sri Lanka's ravaged coast is likely to add15. 14._________
A.some
B.much
C.many
D.few