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【单选题】
现代汉语普通话的语音标准是A.
北京音
B.
北方音
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】In the quest to find a __________ for cancer, scientists must draw on a collective information base.
A.
symptom
B.
diagnosis
C.
cause
D.
remedy
【简答题】(Você quer informações). Vou enviar __________ informações.
【单选题】对于同一类土，土的可松性系数 Ks 及 K's 相比较，正确的为（ ）。<1< /div>
A.
Ks>K's>1
B.
K's > Ks >1
C.
Ks
D.
K's < Ks
【单选题】Once (giving) (a set of) instructions, a computer can gather (a wide ranger) of informa-tion (for different purposes).
A.
giving
B.
a set of
C.
a wide ranger
D.
for different purposes