染色体数目变异包括非整倍体、（）、（）、（）和（），最多见的（）。
参考答案：单倍体；多倍体；双二倍体；混倍体；多倍体
If households are holding larger real money balances than they desire, which of the following is least likely（）
A. The opportunity cost of holding money balances will decrease.
B. Households will bid up securities prices.
C. The central bank must sell securities to absorb the excess money supply and establish equilibrium.
其治法为
A．健脾益气，养心安神B．理气解郁，化痰醒神C．清心泻火，涤痰醒神D．豁痰化瘀，调畅气血E．以上皆非
