The main cells of the human epidermis are（）
A. Melanocytes
B. Keratinocytes
C. Langerhans cells
D. Merkel cell
E. Fibroblasts
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Which of the following lesions are not primary lesions（）
A. papule
B. vesicle
C. pus crust
D. macule
E. nodule
Skin abnormalities can be the “window” of some lesions in the body, such as:（）indicating systemic lupus erythematosus, which plays an important role in clinical diagnosis
A. Facial pruritus
B. Skin allergy
C. Facial butterfly erythema
D. Skin ulcer
E. Raynaud phenomenon
Today the field of intercultural communication includes ______（）
A. intercultural negotiation
B. cross-cultural sensitivity training
C. cross-cultural counseling
D. the above all
Which should NOT be included in the conclusion part（）
A. research gaps
B. major findings
C. pedagogical implications
D. direction of the present research
E. recommendations for future research
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