铝栅MOS工艺的缺点是什么？
参考答案：
制造源、漏极与制造栅极采用两次掩膜步骤，不容易对齐
美拉德反应不利的一面是导致氨基酸的损失，其中影响最大的人体必需氨基酸：（）
A、Lys
B、Phe
C、Val
D、Leu
Because excessively hunting has depleted many wildlife species, game preserves are being established.
A．excessive hunting
B．hunting excessively
C．hunting was excessive
D．they hunted excessively
