题目内容

________ you had been here, we wouldn ’ t have had so much trouble then.

A. when
B. if
C. as
D. since

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The delegation ________ Russia will visit London this afternoon.

A. in
B. from
C. at
D. for

有效仲裁协议的基本条件包括（）

A. 当事人具有行为能力
B. 意思表示真实
C. 形式合法
D. 内容合法
E. 提交冲裁的实行应当具有可仲裁性

L-J质控图中，失控线为（）

A. ±SD
B. ±2SD
C. ±3SD
D. ±4SD
E. ± 5SD

Mother wished I you what she .

A. didn ’t t ell; said
B. didn ’t tell; has said
C. didn ’t tell; had said
D. hadn’t told; said