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下述哪种骨质破坏可见骨骼病变区出现多个大小不等的针尖样透亮影（）。
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下述射线的作用，哪一项严重程度与剂量大小无关，且不存在阈剂量（）。
Section One Directions: There are three passages in this section. Each passage is followed by some questions or unfinished statements. For each of them, there are four choices marked A, B, C and D. You should make the best choice and mark the corresponding letter on the ANSWER SHEET by drawing a single line through the center.Passage 1 The credit created for international settlement among banks not only provides a sense of security for the traders involved, but also a reliable source of finance for foreign trade where required. The credit created, in general, favors the exporter. In order to reduce the possible risk, the exporter usually insists on the buyer establishing a credit in his favor before shipment is unloaded. There are generally several types of credits. A "confirmed credit" guarantees payment to the beneficiary, provided that the credit terms and conditions are met and the standing of the advising bank in the beneficiary’s country is sound. A "revocable credit" may be cancelled at any time up to the moment the advising bank pays. This type of credit is the least favorable to the exporter. There is a risk that the goods may be shipped, and the credit revoked before documents are presented to the advising bank. An "irrevocable credit" may not be cancelled or even amended without the consent of all the parties involved. This type of credit guarantees that no single party will revoke the contract already signed. With the credit arrangement, the issuing bank agrees to pay the advising bank, and the advising bank pays the exporter according to the terms of the documents which appear to fulfill the conditions of the credit. Banks, however, are not bound by, and therefore, not concerned with the underlying sales contract on which the credit requirements are based. As long as the documents are in good order and there are no apparent problems with the process, the buyer is still responsible for payment to the issuing bank although the goods received may be of inferior quality to those ordered. According to the passage, which of the following statements is correct
Directions: There are 10 blanks in the following passages. For each blank, there are four choices marked A, B, C and D. You are supposed to choose the best answer and mark the corresponding letter on the ANSWER SHEET by drawing a single line through the center.Passage One In order to (56) foreign exchange administration, maintain strong balance of payments position, China (57) the Regulations on Foreign Exchange Administration on January 29,1996. The State Administration of Foreign Exchange is the agency responsible for foreign exchange administration. The SAFE has a similar branch structure with that of the People’s Bank of China, China’s central bank. The Bank of China (58) the principal foreign exchange bank. Other banks and financial institutions, (59) affiliates of non-resident banks, (60) designed transactions with the approval of the SAFE.
Section One Directions: In this section, you will hear ten short statements. Each statement will be spoken only once. After each statement, there will be a pause. During the pause, you must read the four suggested answers marked A, B, C and D, and decide which is the best answer. Then mark the corresponding letter on the ANSWER SHEET with a single line through the center.
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