[单项选择]

Many people have difficulty in studying mathematics. Sometimes their difficulty (61) from the psychological idea that they are "no good (62) math". It has been demonstrated many times that it is often this idea (63) is causing their problems (64) than any lack of skill in mathematics. The (65) way to deal with this problem is to (66) yourself that math "involves using the same numbers you have been using (67) your life and that you know them as well as (68) else". Then set your mind to learning how they are used in the (69) part of mathematics you are studying.
Another problem many people (70) is that in mathematics, unlike some other (71) you may have studied, the material has a very important (72) or order. If you don’t understand a (73) of a mathematics text, it is no (74) going on to the next section. Many sections of math books are (75) o
A. while
B. and
C. therefore
D. but

最新试题

• ●    女性，26岁。因尿频、尿急、尿痛2天就诊。已自服用抗菌药物，尿液检查白细胞15～20/HP，中段尿培
• ●    女性，14岁，游泳后出现发热，伴咽痛，畏光，流泪。体检：咽及结膜明显充血，最可能的诊断（　）
• ●    青少年常是小叶性肺炎的好发人群。
• ●    在某实验中，将吐根制剂(致吐剂)通过胃管灌入一呕吐病人胃内，并告诉病人这是止吐的药物。结果30秒内病
• ●    下列化脓性关节炎的X线表现中，哪项出现早而又具有特征性（　）
• ●    肺癌的组织学类型包括（　）
• ●    急性宫外孕最难鉴别的是（　）|陈旧性宫外孕合并感染最难鉴别的是（　）
• ●    男，40岁，发现血压升高，并已排除了继发性高血压。以下哪项可判断为1级高血压（　）
• ●    现存最早的外科方书是（）。
• ●    关于脓胸渗出期的病理变化，下列哪项是错误的（　）