教育内容既要符合幼儿已有的发展水平，又能促进其进一步发展，这符合（　　）。 A．发展

* * 溢液为血性、暗棕色或黄色液体，最多见于（）

A.乳管内 * * 状瘤

B.乳腺纤维瘤

C.早期妊娠

D.乳腺囊性增生病

E.急性乳腺炎

Today, we’ll talk about what other effects watching TV might produce on children. Children should be (1) a lot of television, many experts and parents agree, but there is at least one circumstance when it might be beneficial: (2) . A recent study conducted by Italian researchers found that children (3) immediately preceding and during blood tests experienced less pain than children whose mothers (4) during the procedure, or children whose mothers were present but (5) .
The research, led by Carlo Brown, MD, at the University of Siena, is published in the Archives of Disease in Childhood. (6) the study. None received any type of anesthesia; the children and their mothers (7) . Both the group whose mothers attempted to distract them from the blood tests and those whose mothers simply observed reported (8) than the group who watched cartoons. For that group, the levels of pain were less and the children were better able to (9) .
One of the possible explanations is that children might have (10) during the procedures, exacerbating their perception of pain. "The higher pain level reported by children during (11) shows the difficulty mothers have in interacting positively (12) in their children’s life," the authors write.
However, they stressed that (13) still provided benefits, noting that the children would (14) during the procedures. "Indeed, children state that having their parent present (15) when in pain," say the authors.
Another possibility offered for consideration is the notion that the (16) might release pain-quelling endorphins. Endorphins, (17) produced by the pituitary gland, resemble opiates in their ability to produce analgesia and a sense of well-being. In other words, they might (18) .
In any case, the study results suggest that health workers should (19) to watch television during painful procedures (20) .

古语道：“人要实，火要虚．”“火要虚”的原因是（　　）

A．增大可燃物的热值

B．降低可燃物的着火点

C．增大可燃物与空气的接触面

D．增大空气中氧气的含量

根据其提供的信息，回答问题：

上表是对某社区的婴幼儿近1个月膳食情况的食物频率调查表

如果上述调查中发现，50名婴幼儿每天食用一次，30名婴幼儿每周食用一次，10名婴幼儿每月食用一次，那么营养素补充剂的平均消费频次是（）次／月。

A.18.11

B.16.3

C.8.15

D.无法计算

研究社会学关系一般是从研究人们在群体中的( )开始的。

A．性别

B．角色

C．地位

D．作用

E．意义