that blood diseases are going to continue we’ll have to them.A. Assumed; doing research a

问题补充：

that blood diseases are going to continue, we’ll have to them.

A. Assumed; doing research at

B. Assuming; do research on

C. Assuming; do research for

D. Being assumed; do research on

答案：

A. Assumed; doing research at

(答案→)B. Assuming; do research on

C. Assuming; do research for

D. Being assumed; do research on

解析：第一空考查现在分词做状语，assuming that假定…,第二空考查词组：do research on对…做调查，句意：假设血液病要继续，我们不得不做研究。选B。