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【单选题】
（）是指证据对案件事实的证明的价值和功能。A.
证据方法
B.
证据力
C.
证明力
D.
证据原因
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举一反三
【单选题】—Why didn't Tom attend the meeting yesterday? —He ____ Beijing.
A.
has gone to
B.
had gone to
C.
went to
D.
had been to
【单选题】维生素和无机盐的缺乏会引起入体患多种疾病。下列有关无机盐、维生素缺乏症的表述中，正确的是( )。 ①缺乏含钙的无机盐易患佝偻病、骨质疏松症 ②缺乏含磷的无机盐易患地方性甲状腺肿 ③缺乏含锌的无机盐易造成生长发育不良，味觉发生障碍 ④缺乏维生素A易患神经炎、脚气病 ⑤缺乏维生素C易患坏血病，抵抗力下降
A.
①③⑤
B.
①②④
C.
②③④
D.
②④⑤
【简答题】物理学上常用频率、()、()、()等概念来描述声音的一般特性。
【单选题】—Why didn't Tom attend the meeting yesterday ? —He ____ Beijing . A . has gone to
A.
． has gone to
B.
． had gone to
C.
． went to
D.
． had been to
【单选题】Why didn't Tom attend the meeting yesterday?
A.
has gone to
B.
had gone to
C.
went to
D.
had been to
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