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A、organophosphorous compound 有机磷化合物
B、organic mercury compound 有机汞化合物
C、organoarsenic compound 有机砷化合物
D、cyanide 氰化物
E、sulfonamides 磺胺类药物
A、organophosphorous compound 有机磷化合物
B、organic mercury compound 有机汞化合物
C、organoarsenic compound 有机砷化合物
D、cyanide 氰化物
E、sulfonamides 磺胺类药物
A、Australia
B、The U.S.
C、China
D、The U.K.
A、You can use this model to analyze the effects of several parameter changes.
B、This model is suitable for the analysis of the effects of several parameter changes.
C、One can use this model to analyze the effects of several parameter changes.
D、You can analyze the effects of several parameter changes using this model.
A、There isn’t very much research on the use of oil palm shell as coarse aggregate in the production of concrete
B、Little research has been conducted on the use of oil palm shell s coarse aggregate in the production of concrete.
C、There isn't plenty of research on the use of oil palm shell as coarse aggregate in the production of concrete.
D、There is only a little research on the use of oil palm shell as coarse aggregate in the production of concrete.
A、OK, what are the reasons that coffee prices have fallen? There're a lot of possibilities.
B、All right, it is necessary to consider what causes the reduction of coffee price. There are plenty of possibilities.
C、A number of reasons may explain as to why the price of coffee has decreased.
D、A lot of possible reasons can explain the falling of coffee prices.
A、There are some studies that have concluded that bamboo could be used by builders more widely than it is now as a construction material.
B、Some studies have concluded that bamboo could be more widely used than it is now as a construction material.
C、Bamboo could be used by builders more widely than it is now as a construction material is concluded by some studies.
D、According to a number of recent studies, it is feasible to increase the use of bamboo in the construction industry
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