采用成本法核算长期股权投资的情况下，被投资企业分配投资前的现金股利时，投资企业应当(

某家电公司经销某款电视机的销售单价为1500元／台，单位商品的变动成本为1100元／台，固定成本分摊为20万元，则该款电视机的保本销售额为（）元。

A.500

B.400

C.550000

D.750000

倾销：是指垄断资本家为了击败竞争对手，采取国外市场在一定时期内以远远低于国内外市场的价格，甚至低于生产成本的价格抛售商品的一种行为。 下列行为属于倾销的是( )。

A．中国某丝绸出口公司为打开销路，在欧洲五国开展“买一送一”优惠活动

B．江苏的洗衣粉价格普遍比浙江便宜

C．日本照相器材企业为挤垮中国的民族产业，将其胶卷售价低于成本价五元出售给中国消费者

D．美国出口到中国的小麦，由于在路途上被水淋坏，以原价的七折出售

以下哪些药物通过影响二氢叶酸合成酶产生抗菌作用：

A．甲氨蝶吟

B．氨苯砜

C．磺胺嘧啶

D．乙胺嘧啶

E．对氨水杨酸

某企业 * * 销A、B、C、D四种产品，有关资料如下表所示：

产品名称	销售数量 (件)	销售收入总额 (元)	变动成本总额 (元)	单位边际贡献 (元)	固定成本总额 (元)	利润(或亏损) (元)
A	②	20000	①	5	4000	8000
B	1000	20000	③	④	8000	-2000
C	4000	40000	20000	⑤	9000	⑥
D	3000	⑦	15000	2	⑧	4000

要求：
(1)计算表中用数字①～⑧表示的项目，列示计算过程；
(2)计算该企业的加权平均边际贡献率；
(3)计算该企业的盈亏临界点销售额。

Sure, human dads can play catch and help with homework, but can they give birth? Daddy sea horses can! This Father’s Day, while you’re showing respect to your dad, remember some of the best dads in the world can also be found in the animal kingdom.

Sea Horses: The "Mr. Moms" of the marine world, male sea horses, carry up to 2,000 fertilized eggs in pouches in their stomachs until they hatch. Even after the babies are born, they stay inside the pouch until they are ready to venture out on their own.

Microhylid Frogs: Buy these dads a "Baby on Board" sign to put on their backs! These froggy fathers from New Guinea play piggyback once their babies hatch from their eggs. One by one, the dad lets as many as 24 froglets climb onto his back for a family road trip. He hops about 50 feet each night, and one by one, his kids jump off along the way to begin new lives of their own.

Darwin's Rheas: Thought your dad was overprotective? Darwin's rhea, also known as South American ostriches（鸵鸟）, are so protective of their children that they routinely rush cowboys on horseback and have even been known to attack small airplanes on the ground if they get too close to their brood!

Marmosets: These little monkeys do everything but Lamaze class（心理助产课）! Dedicated dads assist during labor by biting off the umbilical cord（脐带）and cleaning up the afterbirth. They also let Mom get some R&R（rest & recreation）by taking care of the kids when they're not nursing.

Sand Grouse: Talk about sponging off Dad! These pigeon-like birds live in areas where water is sparse, so fathers fly as many as 50 miles to get water for their kids. After they soak up the water in their breast feathers, they fly home and let their chicks suckle the moisture from their bodies.

Fathers of the animal kingdom are not that different from our own beloved dads. This Father's Day, when you are honoring your dad, honor animal dads, too, by practicing kindness and compassion toward all animals.

59．The passage is mainly written to________.

A．introduce to us some unusual animals

B．distinguish between human and animal dads

C．raise our awareness of animal protection

D．praise animal dada for their sacrifices

60．Among these animal dads, which have the ability to fly?

A．Microhylid Frogs.   B．Sea Horses.      C．Darwin’s Rheas.      D．Sand Grouses.

61．What these animals have in common is that      .

A．they carry their young to wherever they please

B．they’re all devoted to their children

C．they’re overprotective of their children

D．they help their wives clean up the afterbirth

62．When Microhylid Frogs play piggyback, they___________.

A．let their kids ride on their back         B．attack cowboys with their back

C．carry their babies inside a pouch     D．help their wife during the labor