...a magnolia-scented soap opera...(Para.5)

Stefan Irwin, Marketing Manager at Classic Merchandise, is investigating response rates to scented and unscented direct mail catalogues. If the response rate for the scented catalogue (population 1) is higher, Mike will adopt the scented version. His staff randomly selects two samples of 200 each from the company’s customer database. One month after the 400 test catalogues were mailed, forty-five orders (twenty-five from the scented and twenty from the unscented) were received from the test catalogues. Assuming a  = .01, Mike’s alternate hypothesis is ________________.

Refuse frost flower" is an alias of which of the following flower viewing trees？ A: White magnolia (Magnolia denudata) B: Albizia (Albizia julibrissin) C: Wintersweet (Chimonanthus praecox) D: Cotton rose (Hibiscus mutabilis)

Magnolia biloba 和 Ginkgo biloba 学名的种加词均为 biloba ，其含义是

由四个音节组成的拉丁文单词是 A: aquosus B: arisaema C: gentiana D: magnolia

Which of the followings are not malignant invasive plants(()). A: Adenophorum B: Yulan magnolia C: Water hyacinth D: Ragweed<br/>[单选题][2分][难度3]

Flowering plants in the following garden plants are: A: Cycad（苏铁） B: Zhu Jiao（朱蕉） C: Magnolia（玉兰） D: Crape myrtle（紫薇）

______ joining this company in January 2004, Magnolia has already accomplished many demanding jobs successfully. A: Since B: Because C: In addition D: Besides

Which of the following plants does not have pure white flowers? A: Michelia maudiae B: Magnolia grandiflora C: Yulania denudata D: Yulania × soulangeana

( ) is a tea made in Lijiang and Yunnan Provinces in China, an area culturally dominated by the Naxi minority group. A: White Spirt B: Scented tea C: Three course tea D: Mashed tea