14. Hydrogen is one of the most important element in the universe ____ it provides the building blocks from which the other elements are produced.　 (A) so that (B) but that (C) provided that (D) in that

14.
Hydrogen is one of the most important element in the universe ____ it provides the building blocks from which the other elements are produced.　
(A) so that
(B) but that
(C) provided that
(D) in that

出自：郑州工程技术学院-大学英语（2）

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