（）在碱性条件下很稳定，故碱水解法仅适合这种氨基酸的含量测定。
A、精氨酸
B、丝氨酸
C、苏氨酸
D、色氨酸
参考答案：D
What do you think of the suggestion ________ he offered us________ we go to New York for our
holiday? [ ]
A. what; that
B. which; which
C. that; that
D. that; what
经检查发现肝内有一占位性病变，最可能的诊断为
A．原发性肝癌B．肝血管瘤C．肝囊肿D．肝脓肿E．继发性肝癌
