小王向小张借了5万元，小张要求小王提供担保，小王找了自己的四个朋友甲、乙、丙、丁，他们各自作出以下表示，其中哪项没有构成保证？（ ）

(单选题)In the author's opinion, the French Paradox has something to (单选题)The underlined word "dicey" (para.3) probably means ( ). (单选题)What can be learned from the second paragraph? ( ) (单选题)What is French Paradox according to this passage? ( ) (单选题)What does science tell us about conventional farming? ( ) (单选题)What does the author think should be taken into account in a (单选题)What is the critic's argument against organic farming? ( (单选题)What do we learn from the conclusion of the author's review (单选题)The underlined word “apparatus” (para.3) here is closest in (单选题)According to the passage, which of the following statement i