A型人参皂苷用一般酸(如4mol/L HCl)水解法水解,得到的苷元是A.齐墩果酸

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问题:

A型人参皂苷用一般酸(如4mol/L HCl)水解法水解,得到的苷元是

A.齐墩果酸

B.原人参二醇

C.原人参三醇

D.人参二醇

E.人参三醇

考点:药学职称考试中药士基础知识初级中药士基础知识7
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计算:
20
+
5
5
-4
3
-
1
3
×
12
+2
12
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治疗小儿急性白血病首选的治疗方案为()

A.注射疗法

B.联合化疗

C.放射疗法

D.免疫治疗

E.骨髓移植

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下列根据此段程序的运算的结果正确的是( )。 Dim x AS Single Dim y As Single If x < 0 Then y = 3 ElseIf x< 1 Then y = 2 * x Else:y = -4 * x + 6 End If

A.当x=2时,y=-2

B.当X=-1时,y=-2

C.当x=0.5时,y=4

D.当x=-2.5时,y=11

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商誉是不可确指的无形资产,鉴证其价值时可用企业所有无形资产价值扣除( )得到其价值。

A.有形资产价值

B.成本费用

C.正常收益

D.单项可确指无形资产价值

题型:单项选择题

"It’s no use, Mum," said Johnny. "I’m just no good at dancing."

"You’ve got to keep trying. Tonight will be (1) , dear. Try a turn with that pretty Lisette. "

Johnny (2) . Every Saturday night used to be the best of the week. He and his parents went to the (3) at the Club, where his hero, Alcide, played the accordion with the band. But lately everything had changed. Now that Johnny was older, he was (4) to dance with a girl!

(5) Johnny and his parents arrived at the Club, music had already started. Johnny got up his (6) to approach Lisette. "May I have this dance" Johnny asked. "That’s all right."said Lisette. Johnny struggled to keep up with Lisette’s (7) steps, but he was always one beat behind her. Then Johnny heard his friend Pierre say, "Look! Johnny has two left feet!" (8) burst from the crowd. Johnny (9) and ran outside, determined never to go to another dance.

The next Saturday, Alcide (10) to Johnny’s house for some potatoes. He happened to hear Johnny playing the accordion. Alcide’s eyes (11) . "Bring that accordion and play some songs tonight," Alcide said. Then he drove off, leaving Johnny staring open mouthed (12) him.

At the Club, Johnny scanned the crowd for Lisette and (13) her. The band played for a long time before Alcide said, "Dear friends, I got a (14) for you tonight. Young Johnny is going to join us!" (15) , Johnny stepped up on the platform, his eyes on the floor. He began to play, and the band (16) behind him. When the song ended, he heard cheers. Johnny kept playing until the dance was (17) . "You did a fine job tonight. Play with us again next Saturday night, " Alcide said. "Yes, sir! " said Johnny. (18) he went outside, Johnny saw Lisette and her friends near the door. Lisette stepped (19) , smiling. "You played really good tonight!" she said."Thank you," Johnny blushed. As he walked on, Pierre (20) moved out of the way for him to pass.Johnny patted his accordion. Come to think of it, in his whole life, he had never once seen Alcide out on the dance floor.

2().

A.answered

B.sighed

C.smiled

D.laughed

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