声场中二个点声源的声压级分别为：（）dB，60dB，那么，总声压级大约为85dB。

补全对话，每空一词。

(John feels ill. The doctor looks him over.)

Doctor: Well, there's nothing serious 1_______ you. I'm glad to say.

        You are working too hard and worrying too 2_______. Do you take enough exercise? 　　

John: No, doctor. I never have enough tine 3_______ exercise.

       I start work very 4_______ in the morning and finish late in the evening.

      Then I can't get to sleep.Can you give me some medicine to help me to sleep? 　　

Doctor: I can, 5_______ I'm not going to. You don't need medicine.

      Remember: Don't work too hard. Too much work is 6_______ for you.

      Don't worry 7_______ your work. It's no use to worry. Take enough exercise.. 　

John: But I may lose my job (工作), doctor. It's hard to get a job 8_______ mine. 　　

Doctor: Then get an easier one, even if get 9_______ money.

       Which would you like to have, health or wealth (财富)? 　　

John: You are right, doctor. It's more important to be healthy than wealthy.

         I'll change my job. Thanks a lot. 　　

Doctor: Come and see me 10_______ a month's tine. I think you'll be a different man

在正常凝血过程中，下列哪项是错误的（）

A.凝血酶激活血小板

B.凝血酶激活因子Ⅰ和因子Ⅷ

C.凝血酶激活因子Ⅷ和因子Ⅴ

D.凝血酶激活因子Ⅻ和因子Ⅲ

E.凝血酶激活因子Ⅻ和因子Ⅴ

（五）阅读下文，完成17～21题。（16分） 史弼传　　　①史弼，字公谦，陈留考城人也。为平原相，时诏书下，令举钩党，郡国所奏，相连及者多至数百，唯弼独无所上，从事①责曰：“诏书疾恶党人，青州六郡，其五有党，平原何理而得独无？” 弼曰：“先王疆理天下，画界分境，水土异齐，风俗不同。它郡自有，平原自无，胡可相比？若承望上司，诬陷良善，淫刑滥罚，以逞非理，则平原之人，户可为党。相有死而已，所不能也。”济活者千余人。　　②迁河东太守，受诏当举孝廉，弼知多权贵请托，乃豫敕断绝书属。中常侍侯览果遣诸生赍书请之，积日不得通。生乃以它事谒弼，而因达览书。弼大怒曰：“太守忝荷重任，当选士报国，尔何人而伪诈无状！”命左右引出，楚捶数百，府丞、掾史十余人皆谏于廷，弼不对。遂付安邑狱，即日考杀之。侯览大怨，遂诬弼诽谤，槛车征。吏人莫敢近者，唯前孝廉裴瑜送到崤渑之间，大言于道旁曰：“明府摧折虐臣，选德报国，如其获罪，足以垂名竹帛，愿不忧不惧。”弼曰：“‘谁谓荼苦，其甘如荠。’昔人刎颈，九死不恨。”下廷尉诏狱，减死罪一等。　　③刑竟归田里，称病闭门不出。数为公卿所荐出为彭城相会病卒。　　（节选自《后汉书》）【注】①从事：官名。

用一个四字短语概括史弼的主要品质。（3分）

电流在导体内流动所遇到的阻力叫______。