锥形瓶可以用来加热液体，但大多用于（）操作。 A.配置一般浓度溶液 B.配置标准浓度

20世纪早期，一位旧派人士在抨击某运动时说：“近阅坊间之出版物，间有主张破除旧有伦教，毁裂吾国固有文学，以期改造一新社会者。……青年学子，根植薄弱，骤睹新奇之说，易启混淆之心，于操行学业前途极有关系。”这段材料从侧面反映了该运动的积极影响，其中不包括

A．破除旧有伦教，冲击儒家思想

B．变革文字语言，冲击封建文学

C．提倡民主共和，抨击君主专制

D．动员青年学子，革除社会旧弊

新生儿期母乳喂养时应注意（）

A、任何姿态哺乳都必须做到宝宝的身体与妈妈的身体的三贴

B、宝宝在吸入 * * 时应吸入大部分乳晕

C、喂养时注意宝宝的鼻子不要被堵塞

D、宝宝随时想吃都可以喂

以下哪项不是21-三体综合征的临床特征（）

A.尿有特殊臭味

B.皮肤纹理异常

C.特殊面容

D.智能低下

E.体格发育迟缓

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

If you feel stressed by responsibilities at work, you should take a step back and identify (识别) those of   61  (great)and less importance. Then, handle the most important tasks first so you’ll feel a real sense of   62  (achieve). Leaving the less important things until tomorrow   63  (be) often acceptable.

Most of us are more focused   64   our tasks in the morning than we are later in the day. So, get an early start and try to be as productive   65   possible before lunch. This will give you the confidence you need to get you through the afternoon and go home feeling accomplished.

Recent   66  (study) show that we are far more productive at work if we take short breaks   67  (regular). Give your body and brain a rest by stepping outside for   68   while, exercising, or dong something you enjoy.

If you find something you love doing outside of the office, you’ll be less likely   69  (bring) your work home. It could be anything-gardening, cooking, music, sports—but whatever it is,   70  (make) sure it’s a relief from daily stress rather than another thing to worry about.

70（）

一个挂钟分针长5厘米，时针从1走到3，分针的尖端走了______厘米．