48.原子吸收光譜試樣中的待測元素若與基質中的某些陰離子形成不易解離的化合物，會減少基態原子 的數目，使吸光度變小。請問上述內容屬於何種干擾？
(A)背景干擾
(B)光譜干擾
(C)化學干擾
(D)物理干擾

49.利用薄層層析片（TLC片），搭配極性不同之A、B展開劑，記錄甲基紅與剛果紅的移動情況，進 行薄層色層分析。【表49】為甲同學的實驗數據，則下列敘述何者正確？  (A)移動相為展開劑 (B)固定相為剛果紅 (C)剛果紅在展開劑A中的R f 值為0.40 (D)展開劑B中甲基紅與固定相的吸附力較剛果紅大

50.精秤0.5000 g碳酸鈣固體試樣，以濃HCl溶解後，加水稀釋至100.0 mL作為試樣溶液，進行以下 測定：方法A：取25.00 mL試樣溶液，加入熱(NH 4 ) 2 C 2 O 4 溶液及氨水，用H 2 SO 4 溶解沉澱物後，在60 °C下以0.020000 M KMnO 4 溶液滴定，當量點體積為20.00 mL。方法B：取10.00 mL試樣溶液，調整至 pH=10，加入EBT，以 0.020000 M的EDTA-2Na 溶液滴定，當量點體積為X mL。設兩方法所得到的 碳酸鈣含量相同，下列敘述何者正確？(Ca=40.00，O=16.00，C=12.00) (A) X值為15.00 mL (B) CaC 2 O 4 沉澱可溶於強鹼 (C)方法B當量點顏色變化為藍至紅 (D)固體試樣中的碳酸鈣含量為80.00% 

1. Regarding to the relationship between brain and behavior, which of the following statements is TRUE? (A)Throughout the life span, behavioral function is totally determined by biological factor (in genetic) as begun when the individual is born. (B) The development of brain is based on the genetic code of each animal and not influenced by environmental factor/change. (C)The structure and function of the brain can be changed as resulted by the individual dynamically adapts to the unpredictable environment for survival. (D) The behavioral function may be changed due to the internal physiological factor or the external environmental factor, however, that have no influence to re-shape the structure of brain and re-adjust neural activity.

2. Alzheimer's disease : depression =___________：___________ (A) psychiatric disorder : neurological disorder (B) neurological disorder : psychiatric disorder (C) neurological disorder : neurological disorder (D) psychiatric disorder : psychiatric disorder

3. Which of the following terms is related to that synapses grown stronger or weaker depend on their effectiveness in driving their target cell? (A) Kluver-Bucy syndrome (B) Hebbian synapses (C) hypofrontality hypothesis (D) Pavlovian conditioning

4. forebrain : hindbrain =___________：___________ (A) thalamus : cerebellum (B)basal ganglia : pons (C) hypothalamus : pons (D) all above (E) none of above

5. The neurochemical condition of___________ in the brain is associated to the anxiety disorder. (A) too much dopamine (B) short of dopamine (C) too much GABA (D) short of GABA

6. A violent person with sever aggressive behavior is attributed to lower level of___________ than the normal subject. (A) androgen (B)estrogen (C) 5-HT (D) dopamine

7. The homeostasis of feeding, drinking, and sexual behaviors are mostly associated to the___________ of the brain. (A) cerebral cortex (B) cerebellar cortex (C) hippocampus (D) hypothalamus

8. Which of the followings is used to characterize different stages of sleep from awake. (A) electromyography (EOG) (B) electroencephalography (EEG) (C) electrocardiography (EKG) (D) transcranial magnetic stimulation (TMS)

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