leancloud node.js express 如何实现多表查询？

Question

 var kRecruitmentTable = AV.Query(kRecruitmentTable);
    var kRecruitmentColletTable = AV.Query(kRecruitmentColletTable);
    var kRecruitmentTable = new kRecruitmentTable();
    var kRecruitmentColletTable = new kRecruitmentColletTable();
    //recruitmentID
    var kRecruitmentTable = AV.Object.createWithoutData("recruitmentID", "5591452fe4b0de86ac64336f");
    kRecruitmentColletTable.set("recruitmentID", kRecruitmentTable);
    console.log( kRecruitmentColletTable);
    kRecruitmentColletTable.find({
        success: function(results) {
            console.log("Successfully retrieved " + results.length + " scores.");
            res.render('resumeInfo/resumeinfo-test', {
                title: '用户反馈',
                results: results
            });
        },
        error: function(error) {
            console.log("Error: " + error.code + " " + error.message);
        }
    });