单项选择题

This article is mainly about ______.

A．WHO's mission and achievements
B．micronutrient malnutrition and its negative effects on children's health
C．the inadequate health care system in the world
D．the rising infant mortality and its causes

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单项选择题

Which of the following is NOT true of malnourished children

A．Over half of the deaths of children under-five are associated with malnutrition.
B．In south Asia, the number of malnourished children is on the rise.
C．More and more countries have reliable data on young children underweight.
D．Most of the malnourished children live in Africa.

单项选择题

The author would probably agree that ______.

A．discoveries of the social sciences also represent scientific advances
B．social sciences lack the rigor that characterizes natural sciences
C．discoveries of the social sciences are being abused
D．there should be a strict separation between pure and applied social sciences