A.栀子素
B.熊果酸
C.京尼平苷
D.栀子苷
E.槲皮素
| Mary was very fond of television, so
when she met a young man{{U}} (36) {{/U}}worked for a television
company, she was very{{U}} (37) {{/U}}and asked him a lot of questions.
She discovered that he had also worked for a film company, so she asked him{{U}}
(38) {{/U}}there was any difference{{U}} (39) {{/U}}film work
and television. "{{U}} (40) {{/U}}," answered the young man, "there is
one very big{{U}} (41) {{/U}}. If someone makes a{{U}} (42)
{{/U}}while a film is being made, it is, of course,{{U}} (43)
{{/U}}to stop and do the scene again. In fact, one can do it over and over
again a lot of{{U}} (44) {{/U}}. Mistakes{{U}} (45) {{/U}}time,
money and films, but the audience (观众) who see the film{{U}} (46)
{{/U}}it is finished don’t know that anything went wrong. In a live (实况播送 A. Now B. Because C. If D. Since [判断题]额定电压为380V的熔断器可用在220V的线路中。
A.正确 B.错误 [单项选择]长期应用氢氯噻嗪降低血压的作用机制主要是
A. 抑制醛固酮分泌 B. 排钠，使细胞内Na+减少 C. 降低血浆肾素活性 D. 排钠利尿，造成体内Na+和水的负平衡，使细胞外液和血容量减少 E. 拮抗醛固酮受体 [多项选择]磷灰石具有的宝石学属性有：（）
A. 一轴晶 B. 双折率很小 C. 硬度6 D. 稀土光谱 [判断题]接触网作业车右侧双针压力表的红针显示制动管压力。
[简答题]按供电电源种类，转辙机可分为直流转辙机和[填空(1)]转辙机。
[单项选择]下列各项不属于钙缺乏表现的是（）
A. 骨骼疼痛、易出血 B. 佝偻病 C. 牙齿发育不正常 D. 骨质疏松症 E. 手足搐搦症 [多选题]起吊物件应绑扎牢固，若物件有棱角或特别光滑的部位时，在（）与绳索（吊带）接触处应加以包垫。
A.滑面 B.物件周围 C.物件表面 D.棱角 E.略 F.略 我来回答: 提交
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