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【单选题】
某试制的注射剂(输液)使用后造成溶血,应( )A.
适当增加水的用量
B.
酌情加入抑菌剂
C.
适当增大一些酸性
D.
适当增加 NaCl 的量
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举一反三
【单选题】The policemen_______the stolen place again and again，and finally they found the evidence who stol
A.
24．The policemen_______the stolen place again and again，and finally they found the evidence who stole the antique（古董）． A．got through
B.
picked up
C.
went over
D.
turned over
【单选题】The policemen were sure that the murderer was the man _____ gun was found lying beside the dead body.
A.
who had
B.
whose
C.
which
D.
of whom a
【简答题】The criminal found a shelter. Very soon, he was caught by the policemen. (no sooner ...than }
【简答题】Exercise 2. Identify the sentence-linking words and write them on the underlines in the order as they are presented in the passage. Synonyms, words that have the same basic meaning, do not always have...
【单选题】傅-克烷基化反应易发生重排,为了得到正烷基苯,最可靠的方法是:( )
A.
使用三氯化铝作为催化剂
B.
反应在较高温度下进行
C.
通过酰基化反应，再还原
D.
使用硝基苯作溶剂
【单选题】傅克烷基化反应易发生重排,为了得到正烷基苯,最可靠的方法是:
A.
使用AlCl 3 作催化剂
B.
使反应在较高温度下进行
C.
通过酰基化反应,再还原
D.
使用硝基苯作溶剂
【单选题】耐高温、耐高压、耐湿的物品首选的是 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
压力蒸汽灭菌 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
B.
煮沸消毒法
C.
燃烧法 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
D.
干烤法
E.
电离辐射灭菌法
【简答题】Ex. 6 Rewrite the following sentences, replacing the underlined words with their synonyms you have learned in this unit. 1. Most of this year’s graduates of our university have found jobs . 2. Y...
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