苯丙氨酸羟化酶基因突变可致
A．苯丙酮尿症B．重症联合免疫缺陷症C．无丙种球蛋白血症D．Down综合征E．慢性髓细胞白血病
参考答案：A
下面词语中有错别字的一项是[ ]
A．枯涸 见贤思齐
B．厄运 踉踉跄跄
C．御聘 害人听闻
D．喧腾 头晕目眩
In (66) the strength of the carder signal is varied to represent binary 1 or 0. (67) is a system that can map a name to an address and conversely an address to an name. (68) is a three-way handshaking authentication protocol that it’s packets are encapsulated in the point-to-point protocol. (69) is an approach that enables an ATM Switch to behave like a LAN switch. (70) is an guided media which is made of glass or plastic and transmits signals in the form of light.
A．ASK
B．PSK
C．FSK
D．FDM
