对于税率的适用,以下表述正确的是;A.对原产于与我国签订最惠国待遇条款的国家或者地区

题型:多项选择题

问题:

对于税率的适用,以下表述正确的是;

A.对原产于与我国签订最惠国待遇条款的国家或者地区的进口货物,适用最惠国税率

B.对原产于与我国签订关税优惠条款的国家或者地区的进口货物,适用协定税率

C.对原产于与我国签订特殊关税优惠条款的国家或者地区的进口货物,适用特惠税率

D.对原产于与我国未签订关税优惠条款的国家或者地区的进口货物,适用普通税率

考点:海关报关员考试报关员
题型:多项选择题

ELISA捕获法检测IgM型抗HBc抗体。

酶标记物是()

A.酶标记的鼠抗人IgG抗体

B.酶标记的鼠抗HBc抗体

C.酶标记的HBcAg

D.酶标记的鼠抗人IgM抗体

E.酶标记的羊抗鼠IgG抗体

题型:多项选择题


Dark Forces Dominate Universe
The Earth, moon, sun and all visible stars in the sky make up less than one per cent of the universe. Almost all the rest is dark matter and dark energy, unknown (1) that puzzle astronomers.
Observations in recent years have changed the basic understanding of how the universe evolved and have emphasized for astronomers how little is known (2) the major forces and substances that shaped our world:
Astronomers now know that luminous matter-stars, planets and hot gas — (3) only about
0.4 per cent of the universe. Non. luminous components, such as black holes and intergalactic gas, make up 3.6 per cent. The rest is either dark matter, about 23 per cent, or dark energy, about 73 per cent.
Dark matter, sometimes called "cold dark matter", has been known for some (4) . Only recently have researchers come to understand the pivotal role it (5) in the formation of stars, planets and even people.
"We owe our very existence to dark matter", said physicist Paul Steinhardt and a co-author of a review on dark matter which appeared not long (6) in the journal Science.
Steinhardt said it is believed that following the Big Bang, the theoretical (7) of the universe, dark matter caused particles to clump together. That set up the gravitation processes that led to the formation of stars and galaxies. Those stars, in turn, created the basic chemicals, such as carbon and iron, that were (8) to the evolution of life.
"Dark matter dominated the formation of structure in the early universe." Steinhardt said. "For the first few billion years dark matter contained (9) of the mass of the universe. You can think of ordinary matter as a froth of an Ocean of dark matter. The dark matter clumps and the ordinary matter falls into it. That led to the (10) of the stars and galaxies."
Without dark matter, "there (11) be virtually no structures in the universe."
The nature of dark matter is (12) . It cannot be seen or detected (13) Astronomers know it is there because of its effect on celestial objects than can be seen and measured.
But the most dominating force of (14) in the universe is called dark energy. A recently proven power that astronomers say is causing the galaxies in the universe to separate at a faster and faster speed.
One scientist said it is clear now (15) dark matter and dark energy engaged in a gravitational tug of war that, eventually, dark energy won.
intergalactic adj. 银河间的 gravitation n. 地心吸力,万有引力
pivotal adj. 关键的;举足轻重的 froth n. 泡沫
celestial adj. 天体的
clump v. 凝聚成块

A.waits for

B.longs for

C.accounts for

D.looks for

题型:多项选择题

患者,女性,56岁,现胃脘痛剧烈有时向后背放射,痛处固定,拒按,上腹肿块,肌肤甲错,眼眶暗黑,舌质紫暗有瘀斑,舌下脉络紫胀,脉弦涩,治疗方剂是()

A.柴胡疏肝汤加减

B.海藻玉壶汤加减

C.开郁二陈汤加减

D.膈下逐瘀汤加减

E.开郁二陈汤加减

题型:多项选择题

在宽带综合业务数据网B-ISDN中,简化了网络功能的是

A.报文交换

B.虚电路交换

C.分组交换

D.ATM

题型:多项选择题

引起红皮型白庀常见原因有()

A.由寻常型白庀发展而成

B.治疗不当

C.外用刺激性很强的药物

D.长期大量运用激素后突然停药

E.食鱼腥发物

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