关于血竭性状特征描述正确的:() A.外色黑似铁,研粉红如血 B.质脆,味淡 C.水

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问题:

关于血竭性状特征描述正确的:()

A.外色黑似铁,研粉红如血

B.质脆,味淡

C.水试:粉末浮于水,不溶解

D.整个药材遇热水软化

E.火烧,烟呛鼻

考点:中药学(医学高级)中药鉴定学中药鉴定学题库
题型:多项选择题
若a是第二象限角,且sina=
2
3
,则cos(-α)=(  )
A.
1
3
B.-
1
3
C.
5
3
D.-
5
3
题型:多项选择题

将点P (-3,4)先向下平移3个单位,再向左平移2个单位后得到点Q,则点Q的坐标是_____________.

题型:多项选择题

The black and white bird came ashore on a beach in the south of the North Island nearly 4,000 miles away from its usual habitat. The creature’s astonishing journey was witnessed by a woman walking her dog as the two-foot bird waddled out of the water in front of her. She said, “It was out of this world to see it. It was this glistening white thing standing up on the sand and I thought I was seeing things.” The tale of the lost penguin is similar to the 2006 children’s film Happy Feet, in which a young penguin finds himself far from home during a voyage of discovery.

Conservationists believe it has completed an incredible journey for such a young bird — it is estimated to be around 10 months old. The most likely explanation for its appearance in New Zealand is the hunt for food. Experts said it may also have rested on an ice floe (浮冰) during its travels and was carried north for a great distance before it made a swim for dry land. Colin Miskelly, a curator of New Zealand Museum, said, “They can spend months at a time in the ocean and come ashore only to moult (脱毛,换毛)or rest.” Mr. Miskelly said the brave bird would have to find its way back south soon if it was going to survive. He said, “It is probably hot and thirsty and has been eating wet sand.” “It doesn’t realize that the sand isn’t going to melt inside it because they typically eat snow — their only liquid.”

New Zealand residents have been warned to give the bird a wide berth — it can inflict (予以) painful bites if threatened.

小题1:Which of the following is True of Paragraph 1?

A.A young penguin found himself far from home during a voyage of moulting.

B.A creature’s astonishing journey was incredible in the north of the North Island.

C.A woman witnessed a 2 feet bird waddled in the children’s film while walking her dog.

D.A penguin came ashore on a beach thousands of miles away from its habitate.小题2:Conservationists tend to explain that____________.

A.the young bird has completed a pleasant journey of 4,000 thousand miles

B.the young bird’s appearance in New Zealand is due to its hunt for food and delay of returning

C.the young bird comes ashore in New Zealand only to moult or rest during its voyage

D.the young bird is certain to be over 10 months old when it appears on a beach小题3:What do we know about the penguin according to Mr. Miskelly?

A.The penguin could spend months at a time in the ocean and came ashore only to have young ones.

B.The young bird might have slept on an ice floe and could not swim for dry land.

C.The young penguin didn’t realize the sand wasn’t going to melt inside it like snow it eats.

D.The brave bird would have to find its way back north soon if it was going to survive.小题4:What does the underlined part mean in the last sentence? 

A.The residents should keep well away from it when they want to watch the young penguin.

B.Some people do not realize the danger of the young bird and they are expected to touch it.

C.New Zealand residents want to keep the young bird but it wants to leave the shore.

D.If the local people threatened the young bird, it would do harm to other birds nearby. .

题型:多项选择题

不同规格的电池()在同一直流供电系统中使用;不同年限的电池()在同一直流供电系统中使用。

A、禁止;不宜

B、不宜;禁止

C、可以;禁止

D、可以;不宜

题型:多项选择题

学生看电视时,眼与电视屏幕的距离为屏幕对角线的()

A.5~7倍

B.3~5倍

C.7~9倍

D.8~9倍

E.6~9倍

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