如果曝气池的SV%为30%，混合液污泥浓度为2500mg/l，那么SVI=（）。

APS对位装置夹紧对位精度应达到（）。

A.±5mm

B.±10mm

C.±15mm

D.±20mm

Popeye the Sailor first became a popular cartoon in the 1930s. the sailor in that cartoon ate lots of spinach to make him strong. People watched him, and they began to buy and eat a lot more spinach. Popeye helped sell 33 percent more spinach than before! Spinach became a necessary part of many people’s diets. Even some children who hated the taste began to eat the vegetable.

Many people thought that the iron in spinach made Popeye strong, but this is not true. Spinach does not have any more iron than any other green vegetable.

People only thought spinach had a lot of iron because the people who studied the food made a mistake. In the 1890s, a group of people studied what was inside vegetables. This group said that spinach had ten times more iron than it did. The group wrote the number wrong, and everyone accepted it.

Today, we know that the little iron in spinach cannot make a difference in how strong a person is. However, spinach does have something else which the body needs—folic acid.

It is interesting to point out that folic acid can help make a person strong. Maybe it was really the folic acid that made Popeye strong all along.

小题1:A good title for this reading passage is______.

A．Popeye the Sailor

B．The Truth About Spinach

C．A Mistake with Numbers

D．Folic Acid Makes You Strong小题2:Why did many people eat spinach after they saw Popeye the Sailor?

A．People liked folic acid.

B．They thought Popeye was funny.

C．Spinach had a lot of iron.

D．They thought spinach made them strong.小题3:A research group told people that spinach______.

A．made Popeye strong

B．was a green vegetable

C．had less iron than other green vegetables

D．had more iron than other green vegetables小题4:The reading passage says that perhaps Popeye got his strength from______.

A．iron

B．spinach

C．folic acid

D．exercise

女性，35岁，因家庭纠纷赌气服用农药200ml，30分钟后出现头痛、头晕、嗜睡、恶心、发绀，2小时出现昏迷及血尿、少尿。查体：浅昏迷，发绀明显，双侧瞳孔3mm，对光反射存在，两肺可闻及少许干、湿啰音，血压140／70mmHg，心率110次／分，心脏听诊可闻及期前收缩。尿常规：RBC（+++），WBC（+），蛋白（+++），镜下可见颗粒管型，血肌酐286μmol／L，血钾5.8mmol／L。

为确诊应首选哪一项实验室检查（）

A.血胆碱酯酶活力测定

B.尿中4－氯－邻甲苯胺含量测定

C.血清单胺氧化酶测定

D.血中高铁血红蛋白测定

E.肝、肾功能测定

男性，40岁，晚餐后5小时开始上腹疼痛，向左肩、腰、背部放射及恶心、呕吐、腹胀。现已37个小时。曾有胆结石史。体检：R24次/分，T 38.9℃， BP 90/75mmHg。巩膜可疑黄染，全腹压痛，以上腹部显著伴肌紧张和反跳痛，移动性浊音阳性，血白细胞16× 10⁹/L，中性粒细胞89%。为确定诊断，最有价值的检查是

A．测定血淀粉酶
B．测定尿淀粉酶
C．腹腔穿刺液检查并测定淀粉酶
D．腹部超声检查
E．腹部X线检查

简述夏衍戏剧作品的现实主义特征。