题目

小明想知道酱油的密度，于是他和小华用天平和量筒做了如下实验： （1） 将天平放在上，把游码放在处，发现指针情况如图甲所示，要使横梁平衡，应将平衡螺母向 选填“右”或“左” 调。 （2） 用天平测出空烧杯的质量为17g，在烧杯中倒入适量的酱油，测出烧杯和酱油的总质量如图乙所示，将烧杯中的酱油全部倒入量筒中，酱油的体积如图丙所示，则烧杯中酱油的质量为g，酱油的密度为 。 （3） 小明用这种方法测出的酱油密 阅读理解 　　There are several reasons for hair loss in women．However, in most cases, treatment is quite effective．Female hair loss patterns in women are not as easily recognizable as they are in men．A woman may experience it temporarily(暂时地)due to pregnancy or illness, although they may experience it for other reasons． 　　Hair loss can be due to a variety of factors, including a genetic tendency(which is not genetically linked to just one parent－both parents contribute to the tendency to lose hair)． 　　Women who are experiencing hair problems seem to have more limited choices than men．There are some female hair loss treatments that are available such as the Tricomin System which is a topical treatment that is nutrition based．Shen Min for Women is another natural treatment that contains herbs(草药)that are said to stimulate(刺激)hair growth and even restore hair that is graying to its natural color． 　　The majority of the popular, proven hair loss treatments are only intended for men and are not suitable for women．True, a woman's hair issue is different from a man's．The biological makeup is different and the needs are different．Women have different needs and their bodies react in different ways to environmental changes, physical illness and even the treatments that are available．There are many natural treatments such as vitamin and mineral supplements that are said to stimulate hair growth, but, for the most part, these claims are currently unproven． 　　One of the first and most important factors to effectively treating is to get a diagnosis from a doctor．Talk to your doctor about any symptoms that you may be experiencing in addition to the thinning hair．Stress, weight loss or gain, illness and depression, all of these can be contributing factors． (1) It can be learned from the 1st paragraph that ________． [　　] A． usually hair loss is hard to heal B． female hair loss is more common than the men's C． women tend to suffer from hair loss during the pregnant period D． only illness contribute to hair loss (2) Which of the following statements matches the text about the two treatments? [　　] A． Both are to solve the problem of male hair loss． B． Tricomin System is effective in speeding the growth of the new hair C． Shen Min is an updated way of treating hair loss D． The former is nutrition-based, while the latter is medicine-based． (3) The reasons for the differences between the female and male hair loss problems do not include ________． [　　] A． The biological structure and composition of the hair B． The wants and needs C． The reactions and responses to the outside changes D． The approach to taking exercise (4) The natural treatments ________． [　　] A． include vitamin and mineral supplements B． are applied to keep the hair healthy C． have been proved useful D． are the most commonly-used ways