能全部通过二号筛，但混有能通过四号筛不超过40%的粉末（） A．最粗粉 B．粗粉 C

Healthy eating habits are important. Here are five of the best eating habits. Follow them and you will have a healthy lifestyle.(生活方式)

小题1:Drink at least(至少)8 glasses of water a day. You may need even more water if you are exercising.

小题2:Breakfast is the most important meal of the day. You will have more energy(能量) after eating breakfast.

小题3:Eat a light lunch every day. If you don’t have time to go out, take a sandwich in the morning with you for a quick lunch.

小题4:We should eat fruit and vegetables every day. Add (增加) a banana to your breakfast,have a salad with lunch, and eat at least one vegetable at dinner.

小题5:Try to have dinner at least 3 hours before you go to bed. Your body(身体)needs time to digest(消化) most of the food before you rest(休息)for the next hours.

下列关于地球内部圈层构造的叙述，正确的是                （   ）

A．岩石圈包括地壳和整个上地幔

B．大陆地壳较厚，大洋地壳较薄

C．地球的内部物质都是固体

D．除地壳外，地幔和地核都呈液态

一青年女性来内科门诊就诊，主诉腰痛及肉眼血尿3d，尿液呈浓茶色，不伴有尿频、尿急、尿痛及尿不尽感，尿液中无血丝及血凝块。

以下判断哪项的可能性大（）

A.患者不存在自身免疫性胶原病的可能性

B.体内存在有慢性微炎症

C.患者可能有IgM肾病

D.患者存在有IgA肾病的较大可能性

E.患者存在有狼疮性肾炎的较大可能性

吗啡急性中毒致死的主要原因是（）

A.呼吸抑制

B.肾衰竭

C.休克

D.急性肝坏死

E.心搏骤停

高张性宫缩乏力(子宫收缩不协调)临床表现特点，正确的是

A．宫缩极性倒置，无对称性，节律不协调
B．比低张性宫缩乏力多见
C．形成病理收缩环，而产程停滞
D．宫腔压力低
E．子宫收缩间歇时，子宫松弛好