测定油品界面张力时应注意哪些事项？

选择该项处理的原因是

A．延期妊娠

B．胎儿窘迫

C．初产臀位足先露

D．产妇要求

E．以上均不是

以下可以得到“2*5=10”结果的 VBA 表达式为______。

A．"2*5" & "=" & 2*5

B．"2*5" + "=" + 2*5

C．2*5 & "=" & 2*5

D．2*5 + "=" + 2*5

如图是初中化学常见的一些氧化物和单质之间的相互转化关系．其中单质Ⅰ为红色固体，氧化物Ⅰ和单质Ⅲ均为黑色固体，氧化物Ⅲ能使澄清石灰水变浑浊．请回答下列有关问题：

（1）反应①中            （填化学式）发生了还原反应；

（2）氧化物Ⅱ除图中所示的化学性质外，还具有       性；

（3）反应③的生成物可能是氧化物Ⅲ，也可能是         ；

（4）上图中有两种物质在一定条件下能发生图示以外的化合反应，且反应前后有一种元素显示三种不同的化合价。则该反应的化学方程式是                          。

出口电池产品的制造商在电池产品出口前，应向国家质检总局申请备案。( )

Attempts to understand the relationship between social behavior and health have their origin in history. Dubos (1969) suggested that primitive humans were closer to the animals (1) they, too, relied’upon their instincts to stay healthy. Yet some primitive humans (2) a cause and effect relationship between doing certain things and alleviating (3) of a disease or (4) the condition of a wound. (5) there was so much that primitive humans did not (6) the functioning of the body, magic became an integral component ofthe beliefs about the causes and cures of heath (7) Therefore it is not (8) that early humans thought that illness was caused (9) evil spirit. Primitive medicines made from vegetables or animals were invariably used in combination with some form of ritual to (10) harmful spirit from a diseased body.

One of the. earliest (11) in the Western world to formulate principles of health care based upon rational thought and (12) of supernatural phenomena is found in the work of the Greek physician Hippocrates. The writing (13) to him has provided a number of principles underiying modern medical practice. One of his most famous (14) , the Hippocratic Oath, is the foundation of contemporary medical ethics.

Hippocrates also argued that medical knowledge should be derived from a (15) of the natural science and the logic of cause and effect relationships. In this (16) thesis, On Air, Water, and Places, Hippocrates pointed out that human well-being is (17) by the totality of environmental (18) : living habits or lifestyle, climate, geography of the land, and the quality of air, and food. (19) enough, concerns about our health and the quality of air, water, and places are (20) very much written in twentieth century.

14（）

A.attractions

B.subscriptions

C.contributions

D.functions