L型钙离子通道中的主要功能亚单位是()。 A.α1 B.α2 C.β D.γ E.δ

题型:单项选择题 A1型题

问题:

L型钙离子通道中的主要功能亚单位是()。

A.α1

B.α2

C.β

D.γ

E.δ

考点:口腔执业医师药理学药理学题库
题型:单项选择题 A1型题

运动对酮体的影响正确的是()。

A.短时间剧烈运动,血液酮体含量变化显著

B.长时间剧烈运动后,血液酮体含量增加明显

C.酮体含量变化与训练水平无关

D.长时间持续运动,只有少量酮体进入血液

E.随运动时间延长,肝酮体生成率小于肝外组织摄取率

题型:单项选择题 A1型题

光泽与白肋烟内在质量有密切关系,表现为()。

A.中下部以尚鲜明者质量好

B.尚鲜明者香气浓、劲头大,杂气微有,吸味纯净

C.稍暗者香气浓、劲头大,杂气微有,吸味纯净

D.光泽鲜明者,香气浓、劲头大,杂气微有,吸味纯净

题型:单项选择题 A1型题

病毒性心肌炎危重证可见()

A.四肢厥冷

B.神疲乏力

C.口唇青紫

D.脉频繁结代

E.头晕多汗

题型:单项选择题 A1型题

熟狗脊片的加工方法是

A.桔梗
B.党参
C.木香
D.川木香
E.白术

题型:单项选择题 A1型题

There has been much speculation about the origin of baseball. In 1907 a special commission decided that the modern game was invented by Abner Doubleday in 1839. One hundred years later the National Baseball Museum was opened to honor Doubleday. Historians, however, disagree about the origin of baseball. Some say that baseball comes from bat-and-ball games of ancient times. It is a matter of record that in the 1700s English boys played a game they called "baseball". Americans have played a kind of baseball since about 1800. At first tile American game had different rules and different names in various parts of the country — "town ball". "rounders", or "one old cat". Youngsters today still play some of these simplified forms of the game.
Baseball did not receive a standard set of rules until 1845, when Alexander Cartwright organized the Knicker-bocker Baseball Club of New York City. The rules Cartwright set up for his nine-player team were widely adopted by other clubs and formed the basis of modem baseball. The game was played on a "diamond" infield with the bases 90 feet apart. The first team to score 21 runs was declared the winner. By 1858 the National Association of Baseball Players was formed with 25 amateur teams. The Cincinnati Red Stockings began to pay players in 1869.

What was the first professional baseball team called

A. New York Knickerbockers.

B. Milwaukee Braves.
C. Cincinnati Red Stockings.

D. Brooklyn Dodgers.

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