The main points of identification of tubal pregnancy and appendicitis are（）
A. Leukopenia
B. Serum HCG
C. Menopause
D. Right lower abdominal pain
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The following statement about the pregnancy at the cesarean scar site is wrong（）
A. Embryo implantation in the scar of cesarean section incision in the lower uterus belongs to ectopic pregnancy
B. The main method of diagnosis is B-ultrasound
C. Early exogenous type can cause uterine rupture or hemorrhage, endogenous type has no risk
D. For early pregnancy, if there is no abdominal pain, vaginal bleeding is not much, and the pregnancy mass is not ruptured, drug treatment can be selected
The most common causes of premature birth are（）
A. Severe preeclampsia
B. Infection of the lower genital tract
C. The incompetence of cervical internal opening
D. premature rupture of fetal membranes
The main productive force in childbirth is（）
A. Uterine contractility
B. Diaphragm contractility
C. Levator ani muscle contractility
D. Abdominal muscle contractility
The following statements about ectopic pregnancy are wrong（）
A. The most common cause of tubal pregnancy is inflammation of the fallopian tubes
B. Tubal pregnancy abortion is the most common result of fallopian tube ampulla pregnancy
C. A tubal pregnancy is most common in the ampulla
D. Ectopic pregnancy means that the fertilized egg is implanted outside the uterus
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