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【判断题】
IP 地址可以分为 A 、 B 、 C 、 D 、 E 共 5 类。其中 C 类地址主机号占用 3 个字节。A.
正确
B.
错误
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
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举一反三
【单选题】He gave me the phone number in order ________ contact him when we are in need of help. [ ]
A.
me to
B.
of me to
C.
for me to
D.
that I
【单选题】He gave me the phone number in order ______ contact him when we are in need of help.
A.
to
B.
of me to
C.
for me to
D.
that I
【简答题】冷冻机油在制冷系统中起到()、()、()、清洁和消声减振等作用。
【简答题】冷冻机油在制冷系统中起到润滑、冷却、密封、清洁和（）的作用。
【单选题】The teacher asked me to read aloud all the students could hear me.
A.
so that
B.
for
C.
because
D.
in order to
【单选题】— Excuse me, can I take your order? —_____________ .
A.
Yes, I’d like a bowl of duck soup
B.
I’d like a bowl of duck soup
C.
Give me a bowl of duck soup
D.
Take your order
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