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13. 使用RU486中止懷孕,應注意何事?①適用於12週內的懷孕②須經超音波檢查確認子宮內懷孕③須經醫師處方④服用一次無效時可於隔週再服用一次⑤自行到藥房購買⑥服用1~2週後務必回醫院檢查 (A)②③⑥ (B)②③④⑥ (C)①②③⑥ (D)①②③④⑥

14. 暑假將至,高一的敏敏因家中經濟所需,所以想在暑假打工以協助家中經濟,身為導師的您應提醒她注意何事?①免經驗、薪水高最好②公司有無立案③未滿18歲有學生平安保險,可不加入勞工保險④敏敏應自己準備齊全防護設備⑤公司有無辦理的安全衛生教育訓練⑥注意契約內容,不隨意簽名 (A)①②④⑥ (B)②⑤⑥ (C)②③④⑥ (D)②③④⑤⑥

36. Analysts estimate sales could reach $300 million a year once regulatory ______ are cleared and full marketing gets under way. (A) hurdles (B) pillars (C) rebates (D) esteems

37. Aware of the potential consequences, he found it impossible to resist the overwhelming ______ to check his phone during the important meeting. (A) compensation (B) determination (C) frustration (D) temptation

7. In a just-identified IV setup with one endogenous regressor $xi$ and one instrument $zi$, the first stage (with an intercept) is $xi = \pi0 + \pi1 zi + vi$. You estimate $\hat{\pi}1$ with $t$-statistic $t{\pi1} = 1.9$ (two-sided). A common rule-of-thumb uses the first-stage $F$ statistic for $H0: \pi1 = 0$, which in this single-instrument case satisfies $F = t{\pi1}^2$. Which statement is most accurate?(A) \( F \approx 1.9 \), so the instrument is strong(B) \( F \approx 3.6 \), suggesting potential weak-instrument concerns and distorted 2SLS inference(C) \( F \approx 19 \), so 2SLS is more efficient than OLS(D) \( F \approx 0.5 \), so 2SLS is unbiased in finite samples