微需氧菌为在含有5%～10%二氧化碳环境中生长良好的细菌。()
参考答案：对
22．Lawrence Craven, a doctor from the USA，is the author of several published reports, one of______ introduced the idea in 1953 ______aspirin could reduce the risk of heart attacks．
A．them; when
B．which; that
C．what; that
D．which; when
.
— Would you mind accepting me as your member?
— Of course not. We ___ anyone if he obeys our rules.
A．bring in
B．result in
C．turn in
D．take in
