船用柴油机广泛使用的柱塞泵式喷射系统中其主要组成是（）。A．喷油泵 B．蓄压器 C．

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Most students develop a fear of tests. It is mainly because they lack self-confidence. Fortunately, overcoming your fear of tests is not difficult, as long as you follow the tips below:

  1  Those who think that they are not well-prepared are usually those who fear tests the most. As long as you know that you have studied well and for long enough, you will be successful.

   2   As long as you have studied well, you will be more confident of your ability to succeed in the test.

   3  This way, you know what to prepare for and you can gain confidence about how well you will do in the test.

You should know that tests only measure your ability, not your intelligence. So, even if you think you will do badly in one test, be sure that there are other tests to come in which you can do better.   4  

  5  However, with the right attitude and preparation, you can overcome your fear of tests through the use of these tips.

A．Ask your teacher beforehand about the material that is going to be covered in the test.

B．Be confident of yourself.

C．Only if you overcome your fear can you achieve much in the tests.

D．Make sure that you are well-prepared.E. Never be afraid of the coming test.

F. As long as you think that there is another tomorrow, you can overcome your fear of this one test.

G. A fear can be a hurdle (障碍) to success.

女性，32岁，颈前疼痛3d，2周前有上呼吸道感染病史。查甲状腺Ⅱ度肿大，触痛明显，碘摄取率降低，血清T₃、T₄水平升高。该病人的诊断是

A．急性化脓性甲状腺炎

B．Graves病

C．产后甲状腺炎

D．亚急性甲状腺炎

E．慢性淋巴细胞性甲状腺炎

在强势有效市场中，信息从产生到被公开的效率受到损害，即存在“内幕信息”。( )

生态旅游实质就是自然旅游。