皮皮学，免费搜题
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搜题
【单选题】
混凝土中的粗骨料优先选用？A.
卵石
B.
碎石
C.
其他材料
D.
以上都可以
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The education of _____ young has become _____ hot and serious topic in the present society. [ ]
A.
the; 不填
B.
a; the
C.
不填; the
D.
the; a
【单选题】The education of _______young is always _______ hot and serious topic in modern society.
A.
the; /
B.
a; the
C.
/; the
D.
the; a
【单选题】I usually use my computer _________my emails and buy tickets.
A.
check
B.
chceks
C.
to check
D.
checking
【单选题】The education of _______young is always _______ hot and serious topic in modern society.
A.
/; the
B.
a; the
C.
the; a
D.
the; /
【单选题】The education of _____ young has become _____ hot and serious topic in the present society.
A.
the; /
B.
a; the
C.
/; the
D.
the; a
【单选题】I usually use my ___________ to write papers and explore the Internet.
A.
digital camera
B.
laptop
C.
MP3 player
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